Hvem vi er
Vi er en gruppe dedikerede mennesker, der kommer fra audiologiske klinikker, universiteter, teknologisk service, og høreapparatindustrien. Vi er medicinske audiologer og otologer, ingeniører, konsulenter og audiologopæder. Nogle er unge, andre mere erfarne. Nogle af os arbejder på projektet på fuld tid, andre på deltid og med andre forpligtelser. Enkelte af os har direkte erfaringer med hørenedsættelse og rehabilitering.
Professor
Aalborg Universitet
Dorte Hammershøi
Dorte Hammershøi er civilingeniør i elektronisk systemkonstruktion med specialisering i medikoteknik fra Aalborg Universitet i 1989, og har desuden en Ph.D. grad i akustik fra samme sted 1995. Hun arbejdede kortvarigt som ingeniør assistent i industrien under hendes studier, men har siden april 1990 været ansat ved Aalborg Universitet, som professor siden 2008. Dortes arbejdsfelt er den menneskelige lydopfattelse med særlig reference til elektro-akustiske anvendelser, inkl. audiometri, oto-akustisk emission, høreskader, 3D lyd og hørelse, og måling af støjpåvirkning fra ørenære kilder.
Arbejdsområde
Dorte Hammershøi er BEAR projektleder, og deltager også i arbejdet med performance med høreapparat og med nye strategier for høreprofiler og tilpasning.
Ressourcer
Publikationer
2024 |
Cañete, Oscar M; Loquet, Gérard; Sanchez-Lopez, Raul; Hougaard, Dan Dupont; Schnack-Petersen, Rikke; Gaihede, Michael; Schmidt, Jesper H; Hammershøi, Dorte; Neher, Tobias Auditory Profile-Based Hearing Aid Fitting: Self-Reported Benefit for First-Time Hearing Aid Users Journal Article Audiological Research, 14 (1), pp. 183-195, 2024. @article{AdiolRes2024, title = {Auditory Profile-Based Hearing Aid Fitting: Self-Reported Benefit for First-Time Hearing Aid Users}, author = {Oscar M Cañete and Gérard Loquet and Raul Sanchez-Lopez and Dan Dupont Hougaard and Rikke Schnack-Petersen and Michael Gaihede and Jesper H Schmidt and Dorte Hammershøi and Tobias Neher}, url = {https://www.mdpi.com/2039-4349/14/1/17}, doi = {10.3390/audiolres14010017}, year = {2024}, date = {2024-02-08}, journal = {Audiological Research}, volume = {14}, number = {1}, pages = {183-195}, abstract = {Background: Although hearing aids (HAs) can compensate for reduced audibility, functional outcomes and benefits vary widely across individuals. As part of the Danish ‘Better hEAring Rehabilitation’ (BEAR) project, four distinct auditory profiles differing in terms of audiometric thresholds and supra-threshold hearing abilities were recently identified. Additionally, profile-specific HA-fitting strategies were proposed. The aim of the current study was to evaluate the self-reported benefit of these profile-based HA fittings in a group of new HA users. Methods: A total of 205 hearing-impaired older adults were recruited from two Danish university hospitals. Participants were randomly allocated to one of two treatment groups: (1) NAL-NL2 gain prescription combined with default advanced feature settings (‘reference fitting’) or (2) auditory profile-based fitting with tailored gain prescription and advanced feature settings (‘BEAR fitting’). Two months after treatment, the participants completed the benefit version of the short form of the Speech, Spatial, and Qualities of Hearing Scale (SSQ12-B) and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaire. Results: Overall, participants reported a clear benefit from HA treatment. However, no significant differences in the SSQ12-B or IOI-HA scores between the reference and BEAR fittings were found. Conclusion: First-time users experience clear benefits from HA treatment. Auditory profile-based HA fitting warrants further investigation.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Background: Although hearing aids (HAs) can compensate for reduced audibility, functional outcomes and benefits vary widely across individuals. As part of the Danish ‘Better hEAring Rehabilitation’ (BEAR) project, four distinct auditory profiles differing in terms of audiometric thresholds and supra-threshold hearing abilities were recently identified. Additionally, profile-specific HA-fitting strategies were proposed. The aim of the current study was to evaluate the self-reported benefit of these profile-based HA fittings in a group of new HA users. Methods: A total of 205 hearing-impaired older adults were recruited from two Danish university hospitals. Participants were randomly allocated to one of two treatment groups: (1) NAL-NL2 gain prescription combined with default advanced feature settings (‘reference fitting’) or (2) auditory profile-based fitting with tailored gain prescription and advanced feature settings (‘BEAR fitting’). Two months after treatment, the participants completed the benefit version of the short form of the Speech, Spatial, and Qualities of Hearing Scale (SSQ12-B) and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaire. Results: Overall, participants reported a clear benefit from HA treatment. However, no significant differences in the SSQ12-B or IOI-HA scores between the reference and BEAR fittings were found. Conclusion: First-time users experience clear benefits from HA treatment. Auditory profile-based HA fitting warrants further investigation. |
2023 |
Narayanan, Sreeram Kaithali; Rye, Palle; Houmøller, Sabina Storbjerg; Wolff, Anne; Hougaard, Dan Dupont; Gaihede, Michael; Hammershøi, Dorte Difference in SII provided by initial fit and NAL-NL2 and its relation to self-reported hearing aid outcomes Journal Article International Journal of Audiology, pp. 1-8, 2023. @article{SKN_SII, title = {Difference in SII provided by initial fit and NAL-NL2 and its relation to self-reported hearing aid outcomes}, author = {Sreeram Kaithali Narayanan and Palle Rye and Sabina Storbjerg Houmøller and Anne Wolff and Dan Dupont Hougaard and Michael Gaihede and Dorte Hammershøi}, doi = {10.1080/14992027.2023.2291633}, year = {2023}, date = {2023-12-19}, journal = {International Journal of Audiology}, pages = {1-8}, abstract = {Objective The speech intelligibility index (SII) is used to quantify the audibility of the speech. This study examined the relationship between self-reported hearing aid (HA) outcomes and the difference in aided SII (SIIA) calculated from the initial fit (IF) gain and that prescribed as per the second generation of National Acoustic Laboratory Non-Linear (NAL-NL2). Design A prospective observational study. Study sample The study included 718 first-time and 253 experienced HA users. All users had a valid real-ear measurement (REM) at three input levels (55, 65 and 80 dB SPL). Results The gain provided by IF was lower than NAL-NL2 at 55 and 65 dB SPL. IF gain exhibited reduced compression than NAL-NL2 as input levels increased from 55 to 80 dB SPL. On average, the SIIA provided by IF was significantly lower than that for NAL-NL2 at all input levels. The difference in SIIA between IF and NAL-NL2 at 80 dB SPL input level with 0 dB signal-to-noise ratio (SNR) turned out to be a predictor for self-reported outcome for first-time HA users. Conclusion The study suggests that an SIIA close to that provided by NAL-NL2 at high input levels would be preferred to obtain a better self-reported outcome. }, keywords = {}, pubstate = {published}, tppubtype = {article} } Objective The speech intelligibility index (SII) is used to quantify the audibility of the speech. This study examined the relationship between self-reported hearing aid (HA) outcomes and the difference in aided SII (SIIA) calculated from the initial fit (IF) gain and that prescribed as per the second generation of National Acoustic Laboratory Non-Linear (NAL-NL2). Design A prospective observational study. Study sample The study included 718 first-time and 253 experienced HA users. All users had a valid real-ear measurement (REM) at three input levels (55, 65 and 80 dB SPL). Results The gain provided by IF was lower than NAL-NL2 at 55 and 65 dB SPL. IF gain exhibited reduced compression than NAL-NL2 as input levels increased from 55 to 80 dB SPL. On average, the SIIA provided by IF was significantly lower than that for NAL-NL2 at all input levels. The difference in SIIA between IF and NAL-NL2 at 80 dB SPL input level with 0 dB signal-to-noise ratio (SNR) turned out to be a predictor for self-reported outcome for first-time HA users. Conclusion The study suggests that an SIIA close to that provided by NAL-NL2 at high input levels would be preferred to obtain a better self-reported outcome. |
Houmøller, Sabina Storbjerg; Tsai, Li-Tang; Wolff, Anne; Narayanan, Sreeram Kaithali; Hougaard, Dan Dupont; Gaihede, Michael; Hammershøi, Dorte; Godballe, Christian; Schmidt, Jesper Hvass A history of occupational noise exposure is associated with steep-slope audiograms and poorer self-reported hearing-aid outcomes Journal Article International Journal of Audiology, 2023. @article{sabina_noise, title = {A history of occupational noise exposure is associated with steep-slope audiograms and poorer self-reported hearing-aid outcomes}, author = {Sabina Storbjerg Houmøller and Li-Tang Tsai and Anne Wolff and Sreeram Kaithali Narayanan and Dan Dupont Hougaard and Michael Gaihede and Dorte Hammershøi and Christian Godballe and Jesper Hvass Schmidt}, url = {https://doi.org/10.1080/14992027.2023.2272558}, doi = {10.1080/14992027.2023.2272558}, year = {2023}, date = {2023-11-01}, journal = {International Journal of Audiology}, abstract = {Objective To investigate the effects of previous occupational noise exposure in older adults with hearing loss on (1) audiometric configuration and acoustic reflex (AR) thresholds and (2) self-reported hearing abilities and hearing aid (HA) effectiveness. Design A prospective observational study. Study sample The study included 1176 adults (≥60 years) with bilateral sensorineural hearing loss. Pure-tone audiometry, AR thresholds, and responses to the abbreviated version of the Speech, Spatial, and Qualities of Hearing Scale (SSQ12) and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaire were obtained, along with information about previous occupational noise exposure. Results Greater occupational noise exposure was associated with a higher prevalence of steeply sloping audiograms in men and women and a 0.32 (95% CI: −0.57; −0.06) scale points lower mean SSQ12 total score among noise-exposed men. AR thresholds did not show a significant relation to noise-exposure status, but hearing thresholds at a given frequency were related to elevated AR thresholds at the same frequency. Conclusions A noise exposure history is linked to steeper audiograms in older adults with hearing loss as well as to poorer self-reported hearing abilities in noise-exposed men. More attention to older adults with previous noise exposure is warranted in hearing rehabilitation.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Objective To investigate the effects of previous occupational noise exposure in older adults with hearing loss on (1) audiometric configuration and acoustic reflex (AR) thresholds and (2) self-reported hearing abilities and hearing aid (HA) effectiveness. Design A prospective observational study. Study sample The study included 1176 adults (≥60 years) with bilateral sensorineural hearing loss. Pure-tone audiometry, AR thresholds, and responses to the abbreviated version of the Speech, Spatial, and Qualities of Hearing Scale (SSQ12) and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaire were obtained, along with information about previous occupational noise exposure. Results Greater occupational noise exposure was associated with a higher prevalence of steeply sloping audiograms in men and women and a 0.32 (95% CI: −0.57; −0.06) scale points lower mean SSQ12 total score among noise-exposed men. AR thresholds did not show a significant relation to noise-exposure status, but hearing thresholds at a given frequency were related to elevated AR thresholds at the same frequency. Conclusions A noise exposure history is linked to steeper audiograms in older adults with hearing loss as well as to poorer self-reported hearing abilities in noise-exposed men. More attention to older adults with previous noise exposure is warranted in hearing rehabilitation. |
Narayanan, Sreeram Kaithali; Houmøller, Sabina Storbjerg; Wolff, Anne; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte Adapting to New Hearing Aids and Hearing Aid Adjustments in Adult Danish Users Journal Article American Journal of Audiology, 32 (3), pp. 526-542, 2023. @article{skn_aja, title = {Adapting to New Hearing Aids and Hearing Aid Adjustments in Adult Danish Users}, author = {Sreeram Kaithali Narayanan and Sabina Storbjerg Houmøller and Anne Wolff and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, url = {https://doi.org/10.1044/2023_AJA-23-00030}, doi = {10.1044/2023_AJA-23-00030}, year = {2023}, date = {2023-07-14}, journal = {American Journal of Audiology}, volume = {32}, number = {3}, pages = {526-542}, abstract = {Purpose: This study was aimed at understanding the effect of time taken to adapt to the new hearing aids (HAs) and the timeline of HA adjustments performed over more than a year of rehabilitation on self-reported HA outcomes. Method: A self-report of the time it took to get accustomed to the new HAs and adjustment of the HAs during a year of rehabilitation collected from 690 HA users using a nonstandardized questionnaire were analyzed. The abbreviated version of the Speech, Spatial, and Quality of Hearing questionnaire and the International Outcome Inventory for Hearing Aids were used as the self-reported HA outcome. Result: Out of 690 participants, 442 (64%) got accustomed to HAs within 2 months. Ninety-one participants (13%) did not get accustomed to the HAs at all, out of which 74 (81%) were first-time HA users. Eighty-four participants (12%) did not receive any HA adjustments after their initial fitting, and 49 (7%) had their HAs adjusted four or more times during the 1 year of rehabilitation. Three hundred ninety (57%) participants got their HA adjusted only at the 2-month follow-up visit, showing the intent to adjust given an opportunity. The stepwise multiple linear regression results showed the significant impact of getting accustomed to the HA and having HA adjusted at multiple instances on the self-reported HA outcomes. Conclusion: This study showed the importance of getting accustomed to the HA and having a minimal number of adjustments to have a better long-term self-reported HA outcome.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Purpose: This study was aimed at understanding the effect of time taken to adapt to the new hearing aids (HAs) and the timeline of HA adjustments performed over more than a year of rehabilitation on self-reported HA outcomes. Method: A self-report of the time it took to get accustomed to the new HAs and adjustment of the HAs during a year of rehabilitation collected from 690 HA users using a nonstandardized questionnaire were analyzed. The abbreviated version of the Speech, Spatial, and Quality of Hearing questionnaire and the International Outcome Inventory for Hearing Aids were used as the self-reported HA outcome. Result: Out of 690 participants, 442 (64%) got accustomed to HAs within 2 months. Ninety-one participants (13%) did not get accustomed to the HAs at all, out of which 74 (81%) were first-time HA users. Eighty-four participants (12%) did not receive any HA adjustments after their initial fitting, and 49 (7%) had their HAs adjusted four or more times during the 1 year of rehabilitation. Three hundred ninety (57%) participants got their HA adjusted only at the 2-month follow-up visit, showing the intent to adjust given an opportunity. The stepwise multiple linear regression results showed the significant impact of getting accustomed to the HA and having HA adjusted at multiple instances on the self-reported HA outcomes. Conclusion: This study showed the importance of getting accustomed to the HA and having a minimal number of adjustments to have a better long-term self-reported HA outcome. |
Wolff, Anne; Houmøller, Sabina Storbjerg; Tsai, Li-Tang; Hougaard, Dan Dupont; Gaihede, Michael; Hammershøi, Dorte; Schmidt, Jesper Hvass The effect of hearing aid treatment on health-related quality of life in older adults with hearing loss Journal Article International Journal of Audiology, 63 (7), pp. 500-509, 2023. @article{AW15D2023, title = {The effect of hearing aid treatment on health-related quality of life in older adults with hearing loss}, author = {Anne Wolff and Sabina Storbjerg Houmøller and Li-Tang Tsai and Dan Dupont Hougaard and Michael Gaihede and Dorte Hammershøi and Jesper Hvass Schmidt }, url = {https://doi.org/10.1080/14992027.2023.2218994}, doi = {10.1080/14992027.2023.2218994}, year = {2023}, date = {2023-06-08}, journal = {International Journal of Audiology}, volume = {63}, number = {7}, pages = {500-509}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Lund, Katja; Ordoñez, Rodrigo; Nielsen, Jens Bo; Christiansen, Stine; Houmøller, Sabina Storbjerg; Schmidt, Jesper Hvass; Gaihede, Michael; Hammershøi, Dorte Value Propositions of Public Adult Hearing Rehabilitation in Denmark Journal Article Audiological Research, 13 (2), pp. 254-270, 2023. @article{KL_ROP_AR2023, title = {Value Propositions of Public Adult Hearing Rehabilitation in Denmark}, author = {Katja Lund and Rodrigo Ordoñez and Jens Bo Nielsen and Stine Christiansen and Sabina Storbjerg Houmøller and Jesper Hvass Schmidt and Michael Gaihede and Dorte Hammershøi}, doi = {10.3390/audiolres13020023}, year = {2023}, date = {2023-04-12}, journal = {Audiological Research}, volume = {13}, number = {2}, pages = {254-270}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Narayanan, Sreeram Kaithali; Houmøller, Sabina Storbjerg; Wolff, Anne; Lund, Katja; Möller, Sören; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte Self-Reported Hearing-Aid Use Patterns in an Adult Danish Population Journal Article Audiological Research, 13 (2), pp. 221-235, 2023. @article{AR2023SKN, title = {Self-Reported Hearing-Aid Use Patterns in an Adult Danish Population}, author = {Sreeram Kaithali Narayanan and Sabina Storbjerg Houmøller and Anne Wolff and Katja Lund and Sören Möller and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, url = {https://doi.org/10.3390/audiolres13020021}, doi = {10.3390/audiolres13020021}, year = {2023}, date = {2023-03-27}, journal = {Audiological Research}, volume = {13}, number = {2}, pages = {221-235}, abstract = {The retrospective reporting of users’ hearing aid (HA) usage can provide insight into individualized HA usage patterns. Understanding these HA usage patterns can help to provide a tailored solution to meet the usage needs of HA users. This study aims to understand the HA usage pattern in daily-life situations from self-reported data and to examine its relationship to self-reported outcomes. A total of 1537 participants who responded to questions related to situations where they always took off or put on the HAs were included in the study. A latent class analysis was performed to stratify the HA users according to their HA usage pattern. The results showed distinct usage patterns in the latent classes derived for both scenarios. The demographics, socio-economic indicators, hearing loss, and user-related factors were found to impact HA usage. The results showed that the HA users who reported using the HAs all the time (regular users) had better self-reported HA outcomes than situational users, situational non-users, and non-users. The study explained the underlying distinct HA usage pattern from self-reported questionnaires using latent class analysis. The results emphasized the importance of regular use of HAs for a better self-reported HA outcome}, keywords = {}, pubstate = {published}, tppubtype = {article} } The retrospective reporting of users’ hearing aid (HA) usage can provide insight into individualized HA usage patterns. Understanding these HA usage patterns can help to provide a tailored solution to meet the usage needs of HA users. This study aims to understand the HA usage pattern in daily-life situations from self-reported data and to examine its relationship to self-reported outcomes. A total of 1537 participants who responded to questions related to situations where they always took off or put on the HAs were included in the study. A latent class analysis was performed to stratify the HA users according to their HA usage pattern. The results showed distinct usage patterns in the latent classes derived for both scenarios. The demographics, socio-economic indicators, hearing loss, and user-related factors were found to impact HA usage. The results showed that the HA users who reported using the HAs all the time (regular users) had better self-reported HA outcomes than situational users, situational non-users, and non-users. The study explained the underlying distinct HA usage pattern from self-reported questionnaires using latent class analysis. The results emphasized the importance of regular use of HAs for a better self-reported HA outcome |
2022 |
Rye, Palle; Andersen, Rasmus Overgaard; Ravn, Gert; Hammershøi, Dorte Oral presentation at the Joint Euroregio Baltic Nordic Acoustics Meeting, Aalborg, Denmark, 2022. @inproceedings{Palle1_ERBNAM2022, title = {Comparison of Speech Reception Thresholds for Diotic, Dichotic and Antiphasic Headphone Presentations of Digits-in-Noise Triplets using Dantale I Material}, author = {Palle Rye and Rasmus Overgaard Andersen and Gert Ravn and Dorte Hammershøi}, url = {https://www.conforg.fr/bin/time_table?dir=erbnam2022}, year = {2022}, date = {2022-05-11}, booktitle = {Oral presentation at the Joint Euroregio Baltic Nordic Acoustics Meeting, Aalborg, Denmark}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Narayanan, Sreeram Kaithali; Rye, Palle; Piechowiak, Tobias; Ravn, Gert; Wolff, Anne; Houmøller, Sabina Storbjerg; Schmidt, Jesper Hvass; Hammershøi, Dorte Can real-ear insertion gain deviations from generic fitting prescriptions predict self-reported outcomes? Journal Article The International Journal of Audiology, 62 (5), pp. 433-441, 2022. @article{TIJA_SKN_J1, title = {Can real-ear insertion gain deviations from generic fitting prescriptions predict self-reported outcomes?}, author = {Sreeram Kaithali Narayanan and Palle Rye and Tobias Piechowiak and Gert Ravn and Anne Wolff and Sabina Storbjerg Houmøller and Jesper Hvass Schmidt and Dorte Hammershøi}, url = {https://doi.org/10.1080/14992027.2022.2053594}, doi = {10.1080/14992027.2022.2053594}, year = {2022}, date = {2022-04-07}, journal = {The International Journal of Audiology}, volume = {62}, number = {5}, pages = {433-441}, abstract = {Objective The aim of this study was to determine whether the differences in insertion gains from the first fit to generic prescriptions of hearing aids can predict the self-reported hearing aid (HA) outcomes for first-time and experienced HA users. Design This was a prospective observational study. Study Sample The study included 885 first-time and 330 experienced HA users with a valid real-ear measurement on both ears and answers to the abbreviated version of the Speech, Spatial, and Quality of Hearing (SSQ12) and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaires. Results K-means clustering of gain differences between individual real-ear insertion gain to three generic gain prescriptions (NAL-NL2, NAL-RP, and one-third gain rules) was performed. The gain difference at higher frequencies generally differentiated the clusters. The experienced users in the cluster with fittings closest to NAL-NL2 and NAL-RP prescription were found to exhibit a higher IOI-HA Factor 1 score (representing the overall benefit of the hearing aid use). The gain differences to generic prescription did not affect other self-reported outcomes for first-time and experienced HA users. Conclusion The experienced HA users with minimal gain deviations from generic prescriptions reported better self-perceived benefits than users with larger deviations. However, this was not apparent in first-time users.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Objective The aim of this study was to determine whether the differences in insertion gains from the first fit to generic prescriptions of hearing aids can predict the self-reported hearing aid (HA) outcomes for first-time and experienced HA users. Design This was a prospective observational study. Study Sample The study included 885 first-time and 330 experienced HA users with a valid real-ear measurement on both ears and answers to the abbreviated version of the Speech, Spatial, and Quality of Hearing (SSQ12) and the International Outcome Inventory for Hearing Aids (IOI-HA) questionnaires. Results K-means clustering of gain differences between individual real-ear insertion gain to three generic gain prescriptions (NAL-NL2, NAL-RP, and one-third gain rules) was performed. The gain difference at higher frequencies generally differentiated the clusters. The experienced users in the cluster with fittings closest to NAL-NL2 and NAL-RP prescription were found to exhibit a higher IOI-HA Factor 1 score (representing the overall benefit of the hearing aid use). The gain differences to generic prescription did not affect other self-reported outcomes for first-time and experienced HA users. Conclusion The experienced HA users with minimal gain deviations from generic prescriptions reported better self-perceived benefits than users with larger deviations. However, this was not apparent in first-time users. |
2021 |
Houmøller, Sabina Storbjerg; Wolff, Anne; Narne, Vijaya K; Narayanan, Sreeram Kaithali; Godballe, Christian; Hougaard, Dan Dupont; Loquet, Gérard; Gaihede, Michael L; Hammershøi, Dorte; Schmidt, Jesper Hvass International Journal of Audiology, pp. 1-11, 2021. @article{doi:10.1080/14992027.2021.1916632, title = {Prediction of successful hearing aid treatment in first-time and experienced hearing aid users: Using the International Outcome Inventory for Hearing Aids}, author = {Sabina Storbjerg Houmøller and Anne Wolff and Vijaya K. Narne and Sreeram Kaithali Narayanan and Christian Godballe and Dan Dupont Hougaard and Gérard Loquet and Michael L Gaihede and Dorte Hammershøi and Jesper Hvass Schmidt}, url = {https://doi.org/10.1080/14992027.2021.1916632}, doi = {10.1080/14992027.2021.1916632}, year = {2021}, date = {2021-05-25}, journal = {International Journal of Audiology}, pages = {1-11}, abstract = {Objective: Primarily to understand whether clinically relevant factors affect the International Outcome Inventory (IOI-HA) scores and to examine if IOI-HA scores improve when renewing the hearing aids (HA) for experienced users. Secondly, to estimate the overall HA effectiveness using the IOI-HA. Design: A prospective observational study. Study sample: In total, 1961 patients with hearing loss were included. All patients underwent a hearing examination, were fitted with HAs, and answered the IOI-HA. Factor analysis of IOI-HA separated the items into a Factor 1 (use of HA, perceived benefits, satisfaction, and quality of life) and Factor 2 (residual activity limitation, residual participation restriction and impact on others) score. Results: Degree of hearing loss, word recognition score, motivation, HA usage time, tinnitus, asymmetry, and sex were significantly associated with total IOI-HA, Factor 1, or Factor 2 scores. The seven IOI-HA items increased on average by 0.4 (p < 0.001) when renewing HAs. The total median IOI-HA score at follow-up was 29 (7) for experienced (n = 460) and first-time users (n = 1189), respectively. Conclusions: Degree of hearing loss, word recognition score, motivation, tinnitus, asymmetry, and sex may be used to identify patients who require special attention to become successful HA users.}, keywords = {}, pubstate = {published}, tppubtype = {article} } Objective: Primarily to understand whether clinically relevant factors affect the International Outcome Inventory (IOI-HA) scores and to examine if IOI-HA scores improve when renewing the hearing aids (HA) for experienced users. Secondly, to estimate the overall HA effectiveness using the IOI-HA. Design: A prospective observational study. Study sample: In total, 1961 patients with hearing loss were included. All patients underwent a hearing examination, were fitted with HAs, and answered the IOI-HA. Factor analysis of IOI-HA separated the items into a Factor 1 (use of HA, perceived benefits, satisfaction, and quality of life) and Factor 2 (residual activity limitation, residual participation restriction and impact on others) score. Results: Degree of hearing loss, word recognition score, motivation, HA usage time, tinnitus, asymmetry, and sex were significantly associated with total IOI-HA, Factor 1, or Factor 2 scores. The seven IOI-HA items increased on average by 0.4 (p < 0.001) when renewing HAs. The total median IOI-HA score at follow-up was 29 (7) for experienced (n = 460) and first-time users (n = 1189), respectively. Conclusions: Degree of hearing loss, word recognition score, motivation, tinnitus, asymmetry, and sex may be used to identify patients who require special attention to become successful HA users. |
Rye, Palle; Narayanan, Sreeram Kaithali; Hammershøi, Dorte Effects of Intermittent Noise on Real Ear Measurements in Hearing Aid Fitting Inproceedings Poster presentation at Baltic Nordic Acoustics Meeting, 3-5 May 2021, Oslo, Norway (online), pp. 1–6, NAA (Nordic Acoustical Association), 2021. @inproceedings{PR_BNAM2021, title = {Effects of Intermittent Noise on Real Ear Measurements in Hearing Aid Fitting}, author = {Palle Rye and Sreeram Kaithali Narayanan and Dorte Hammershøi}, url = {http://www.norskakustiskselskap.org/wp-content/uploads/2021/10/BNAM_2021_Effects_of_Intermittent_Noise_on_Real_Ear_Measurements_in_Hearing_Aid_Fitting-31-28-Rye-Palle.pdf}, year = {2021}, date = {2021-05-03}, booktitle = {Poster presentation at Baltic Nordic Acoustics Meeting, 3-5 May 2021, Oslo, Norway (online)}, pages = {1--6}, publisher = {NAA (Nordic Acoustical Association)}, abstract = {When fitting a hearing aid, real ear measurements (REM) can prove a valuable tool for adjusting the gain of the hearing aid. In REM a probe microphone is inserted into the ear canal carefully placing the probe microphone tip a few millimeters from the tympanic membrane. Typically a reference microphone is present outside the ear canal near the pinna. Proper calibration before the REM measurement ensures a flat response of the probe microphone when placing the tip at the same positions as the reference microphone. The real ear unaided gain (REUG) is measured as the level difference between the reference microphone and the probe microphone placed near the tympanic membrane. Inserting the hearing aid the real ear aided gain (REAG) can be measured similarly and the real ear insertion gain (REIG) is calculated as the difference between the REAG and the REUG. Fitting a hearing aid typically involves matching the hearing aid gain to match a REIG prescription target derived by the patients audiogram and occasionally other diagnostic data. To ensure matching the REIG to the prescription target care must be taken to ensure accuracy in the REM measurements. Inspecting a database of thousands of clinically recorded REM a handful of anomalies were detected and the present study seek to reproduce the observed effects under controlled laboratory conditions. The study involves measuring REM using manikins as well as human subjects. A semi-automated test setup was developed to synchronise the measurement equipment and the noise disturbance in order to investigate the effects of different types of intermittent noise on REM. Preliminary results indicate that intermittent noise burst even shorter than 1s in duration can cause detrimental effects on the real ear measurement.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } When fitting a hearing aid, real ear measurements (REM) can prove a valuable tool for adjusting the gain of the hearing aid. In REM a probe microphone is inserted into the ear canal carefully placing the probe microphone tip a few millimeters from the tympanic membrane. Typically a reference microphone is present outside the ear canal near the pinna. Proper calibration before the REM measurement ensures a flat response of the probe microphone when placing the tip at the same positions as the reference microphone. The real ear unaided gain (REUG) is measured as the level difference between the reference microphone and the probe microphone placed near the tympanic membrane. Inserting the hearing aid the real ear aided gain (REAG) can be measured similarly and the real ear insertion gain (REIG) is calculated as the difference between the REAG and the REUG. Fitting a hearing aid typically involves matching the hearing aid gain to match a REIG prescription target derived by the patients audiogram and occasionally other diagnostic data. To ensure matching the REIG to the prescription target care must be taken to ensure accuracy in the REM measurements. Inspecting a database of thousands of clinically recorded REM a handful of anomalies were detected and the present study seek to reproduce the observed effects under controlled laboratory conditions. The study involves measuring REM using manikins as well as human subjects. A semi-automated test setup was developed to synchronise the measurement equipment and the noise disturbance in order to investigate the effects of different types of intermittent noise on REM. Preliminary results indicate that intermittent noise burst even shorter than 1s in duration can cause detrimental effects on the real ear measurement. |
Hammershøi, Dorte Better hearing rehabilitation for adult first-time users (the BEAR project) Inproceedings Invitede lecture at Baltic Nordic Acoustics Meeting, 3-5 May 2021, Oslo, Norway (online), pp. 1–7, NAA (Nordic Acoustic Association) 2021. @inproceedings{DH_BNAM2021_invited, title = {Better hearing rehabilitation for adult first-time users (the BEAR project)}, author = {Dorte Hammershøi}, url = {http://www.norskakustiskselskap.org/wp-content/uploads/2021/10/Hammershoi_invited_BNAM2021_v2-12-15-Hammershoi-Dorte.pdf}, year = {2021}, date = {2021-05-03}, booktitle = {Invitede lecture at Baltic Nordic Acoustics Meeting, 3-5 May 2021, Oslo, Norway (online)}, pages = {1--7}, organization = {NAA (Nordic Acoustic Association)}, abstract = {First-time adult hearing-aids users do not always experience the debut with success, and it is known that some give up. For the professional fitting the hearing aid, it is often a difficult to figure out, if the hearing aid is poorly fitted to the individual, and whether it is set for best performance or not. The purpose of the BEAR project is to develop a stronger framework for the diagnostics, fitting and assessment of the aided performance that will allow for a more structured, and personalized approach. The project includes several scientific efforts, incl. 1) the collection of data for almost 2.000 patients fitted according to current practice, 2) the development and assessment of new diagnostics for profiling and fitting strategies, as well as 3) development and assessment of methods for measurement of the aided performance. The on-going work includes a proposal for a differentiated fitting based on extended auditory profiles, and is accompanied by both in- and out-of-clinic options for testing and/or reporting on the aided performance experience. Future results will include an experimental validation of the proposed differentiated fitting, as well as separate efforts to investigating common denominators for patients with poor compensation benefits, and options for out-of-clinic application of the proposed methods.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } First-time adult hearing-aids users do not always experience the debut with success, and it is known that some give up. For the professional fitting the hearing aid, it is often a difficult to figure out, if the hearing aid is poorly fitted to the individual, and whether it is set for best performance or not. The purpose of the BEAR project is to develop a stronger framework for the diagnostics, fitting and assessment of the aided performance that will allow for a more structured, and personalized approach. The project includes several scientific efforts, incl. 1) the collection of data for almost 2.000 patients fitted according to current practice, 2) the development and assessment of new diagnostics for profiling and fitting strategies, as well as 3) development and assessment of methods for measurement of the aided performance. The on-going work includes a proposal for a differentiated fitting based on extended auditory profiles, and is accompanied by both in- and out-of-clinic options for testing and/or reporting on the aided performance experience. Future results will include an experimental validation of the proposed differentiated fitting, as well as separate efforts to investigating common denominators for patients with poor compensation benefits, and options for out-of-clinic application of the proposed methods. |
Narne, Vijaya K; Möller, Sören; Wolff, Anne; Houmøller, Sabina S; Loquet, Gérard; Hammershøi, Dorte; Schmidt, Jesper H Confidence Limits of Word Identification Scores Derived Using Nonlinear Quantile Regression Journal Article Trends in Hearing, 25 , pp. 1-9, 2021. @article{doi:10.1177/2331216520983110, title = {Confidence Limits of Word Identification Scores Derived Using Nonlinear Quantile Regression}, author = {Vijaya K Narne and Sören Möller and Anne Wolff and Sabina S Houmøller and Gérard Loquet and Dorte Hammershøi and Jesper H Schmidt}, url = {https://doi.org/10.1177%2F2331216520983110}, doi = {10.1177/2331216520983110}, year = {2021}, date = {2021-01-25}, journal = {Trends in Hearing}, volume = {25}, pages = {1-9}, abstract = {The relation between degree of sensorineural hearing loss and maximum speech identification scores (PBmax) is commonly used in audiological diagnosis and rehabilitation. It is important to consider the relation between the degree of hearing loss and the lower boundary of PBmax, as the PBmax varies largely between subjects at a given degree of hearing loss. The present study determines the lower boundary by estimating the lower limit of the one-tailed 95% confidence limit (CL) for a Dantale I, word list, in a large group of young and older subjects with primarily sensorineural hearing loss. PBmax scores were measured using Dantale I, at 30 dB above the speech reception threshold or at the most comfortable level from 1,961 subjects with a wide range of pure-tone averages. A nonlinear quantile regression approach was applied to determine the lower boundary (95% CL) of PBmax scores. At a specific pure-tone average, if the measured PBmax is poorer than the lower boundary (95% CL) of PBmax, it may be considered disproportionately poor.}, keywords = {}, pubstate = {published}, tppubtype = {article} } The relation between degree of sensorineural hearing loss and maximum speech identification scores (PBmax) is commonly used in audiological diagnosis and rehabilitation. It is important to consider the relation between the degree of hearing loss and the lower boundary of PBmax, as the PBmax varies largely between subjects at a given degree of hearing loss. The present study determines the lower boundary by estimating the lower limit of the one-tailed 95% confidence limit (CL) for a Dantale I, word list, in a large group of young and older subjects with primarily sensorineural hearing loss. PBmax scores were measured using Dantale I, at 30 dB above the speech reception threshold or at the most comfortable level from 1,961 subjects with a wide range of pure-tone averages. A nonlinear quantile regression approach was applied to determine the lower boundary (95% CL) of PBmax scores. At a specific pure-tone average, if the measured PBmax is poorer than the lower boundary (95% CL) of PBmax, it may be considered disproportionately poor. |
2020 |
Lund, Katja; Ordoñez, Rodrigo; Nielsen, Jens Bo; Hammershøi, Dorte “Yes, I have experienced that!” – How daily life experiences may be harvested from new hearing aid users Inproceedings Kressner, Abigail Anne; Regev, Jonathan; Christensen-Dalsgaard, Jakob; Tranebjærg, Lisbeth; Santurette, Sébastien; Dau, Torsten (Ed.): Proceedings of the International Symposium on Audiogory and Audiological Research, pp. 381-388, 2020. @inproceedings{ISAAR2019Klu_print, title = {“Yes, I have experienced that!” – How daily life experiences may be harvested from new hearing aid users}, author = {Katja Lund and Rodrigo Ordoñez and Jens Bo Nielsen and Dorte Hammershøi}, editor = {Abigail Anne Kressner and Jonathan Regev and Jakob Christensen-Dalsgaard and Lisbeth Tranebjærg and Sébastien Santurette and Torsten Dau }, url = {https://proceedings.isaar.eu/index.php/isaarproc/article/view/2019-44}, year = {2020}, date = {2020-05-01}, booktitle = {Proceedings of the International Symposium on Audiogory and Audiological Research}, volume = {7}, pages = {381-388}, abstract = {Both auditory and non-auditory aspects of the rehabilitation process play a role in successful hearing aid uptake. The sound may be experienced differently in the clinic compared to daily life and the skills and knowledge related to HA use vary from patient to patient. The aim of the present study is to assess daily life experiences of new hearing aid users and to explore ways to utilize these assessments in a follow-up situation. The approach is based on online reporting, where the patients over a period of two months “swipe” through 453 possible experiences related to HA use. Seventeen patients volunteered to register experiences for a period of two months, and participated in a follow-up interview, where the registered data were presented. Results suggest that data can shed light on the development within various categories of hearing aid experience and promote reflection on the hearing rehabilitation process.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } Both auditory and non-auditory aspects of the rehabilitation process play a role in successful hearing aid uptake. The sound may be experienced differently in the clinic compared to daily life and the skills and knowledge related to HA use vary from patient to patient. The aim of the present study is to assess daily life experiences of new hearing aid users and to explore ways to utilize these assessments in a follow-up situation. The approach is based on online reporting, where the patients over a period of two months “swipe” through 453 possible experiences related to HA use. Seventeen patients volunteered to register experiences for a period of two months, and participated in a follow-up interview, where the registered data were presented. Results suggest that data can shed light on the development within various categories of hearing aid experience and promote reflection on the hearing rehabilitation process. |
Hammershøi, Dorte; Wolff, Anne; Andersen, Lykke Junker; Mortensen, Rikke Louise; Nielsen, Mads Dalsgaard; Larsen, Stefanie Aagard Skov A word elicitation study including the development of scales characterizing aided listening experience Inproceedings Kressner, Abigail Anne; Regev, Jonathan; Christensen-Dalsgaard, Jakob; Tranebjærg, Lisbeth; Santurette, Sébastien; Dau, Torsten (Ed.): Proceedings of the International Symposium on Audiogory and Audiological Research, pp. 297-304, 2020. @inproceedings{ISAARPDP780print, title = {A word elicitation study including the development of scales characterizing aided listening experience}, author = {Dorte Hammershøi and Anne Wolff and Lykke Junker Andersen and Rikke Louise Mortensen and Mads Dalsgaard Nielsen and Stefanie Aagard Skov Larsen}, editor = {Abigail Anne Kressner and Jonathan Regev and Jakob Christensen-Dalsgaard and Lisbeth Tranebjærg and Sébastien Santurette and Torsten Dau }, url = {https://proceedings.isaar.eu/index.php/isaarproc/article/view/2019-34}, year = {2020}, date = {2020-04-22}, booktitle = {Proceedings of the International Symposium on Audiogory and Audiological Research}, volume = {7}, pages = {297-304}, abstract = {The purpose of the present study was to identify the terms hearing aid professionals and their patients use in the communication about the aided listening experience and develop scales that would help characterize this experience in the domain of corrective actions that a hearing care professional may apply. The study comprised a word elicitation task based on observations and interviews from consultations at the Aalborg University Hospital. The results were analyzed by developing an affinity diagram. The resulting 80 words were then sorted by three hearing professionals in a supervised card sorting session. The resulting attributes were included in a 63-point scale design, which (in a usability test including eight hearing-aid users) were considered easy to survey and use, but also including some redundancy and ambiguities. The results suggest that it is possible to develop scales based on the voluntary statements expressed during actual consultations, but it remains uncertain whether the expressions will be interpreted the same way by other patients and professionals.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } The purpose of the present study was to identify the terms hearing aid professionals and their patients use in the communication about the aided listening experience and develop scales that would help characterize this experience in the domain of corrective actions that a hearing care professional may apply. The study comprised a word elicitation task based on observations and interviews from consultations at the Aalborg University Hospital. The results were analyzed by developing an affinity diagram. The resulting 80 words were then sorted by three hearing professionals in a supervised card sorting session. The resulting attributes were included in a 63-point scale design, which (in a usability test including eight hearing-aid users) were considered easy to survey and use, but also including some redundancy and ambiguities. The results suggest that it is possible to develop scales based on the voluntary statements expressed during actual consultations, but it remains uncertain whether the expressions will be interpreted the same way by other patients and professionals. |
Narayanan, Sreeram Kaithali; Piechowiak, Tobias; Wolff, Anne; Houmøller, Sabina Storbjerg; Narne, Vijaya K; Loquet, Gérard; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte Speech related hearing aid benefit index derived from standardized self-reported questionnaire data Inproceedings Kressner, Abigail Anne; Regev, Jonathan; Christensen-Dalsgaard, Jakob; Tranebjærg, Lisbeth; Santurette, Sébastien; Dau, Torsten (Ed.): Proceedings of the International Symposium on Auditory and Audiological Research, 2020. @inproceedings{ISAAR2019_sreeram_print, title = {Speech related hearing aid benefit index derived from standardized self-reported questionnaire data}, author = {Sreeram Kaithali Narayanan and Tobias Piechowiak and Anne Wolff and Sabina Storbjerg Houmøller and Vijaya K. Narne and Gérard Loquet and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, editor = {Abigail Anne Kressner and Jonathan Regev and Jakob Christensen-Dalsgaard and Lisbeth Tranebjærg and Sébastien Santurette and Torsten Dau }, url = {https://proceedings.isaar.eu/index.php/isaarproc/article/view/2019-45}, year = {2020}, date = {2020-04-14}, booktitle = {Proceedings of the International Symposium on Auditory and Audiological Research}, volume = {7}, abstract = {Speech understanding in noisy environments has been the most desired hearing-aid (HA) benefit sought by HA users. This paper examines the possibility of developing a speech-related HA benefit index from the speech- related questions in the self-reported questionnaire data. One question from Health-Related Quality of Life (HRQoL) instrument 15D and nine questions from the Speech, Spatial and Qualities of Hearing Scale (SSQ) having a direct implication to speech were selected for the analysis. After applying weights relevant to 15D, a delta of base-line (prior to HA fitting) and follow-up (two months after the initial fitting) responses to the selected questions were determined. A principal component analysis (PCA) was performed on the scaled and centered delta values. The resultant principal component scores were used to derive the composite index indicative of speech-related HA benefit.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } Speech understanding in noisy environments has been the most desired hearing-aid (HA) benefit sought by HA users. This paper examines the possibility of developing a speech-related HA benefit index from the speech- related questions in the self-reported questionnaire data. One question from Health-Related Quality of Life (HRQoL) instrument 15D and nine questions from the Speech, Spatial and Qualities of Hearing Scale (SSQ) having a direct implication to speech were selected for the analysis. After applying weights relevant to 15D, a delta of base-line (prior to HA fitting) and follow-up (two months after the initial fitting) responses to the selected questions were determined. A principal component analysis (PCA) was performed on the scaled and centered delta values. The resultant principal component scores were used to derive the composite index indicative of speech-related HA benefit. |
2017 |
van Hauen, Sigurd Møller; Rukjær, Andreas Harbo; Ordoñez, Rodrigo; Hammershøi, Dorte Estimating auditory filter bandwidth using distortion product otoacoustic emissions Inproceedings Santurette, Sébastien; Dau, Torsten; Christensen-Dalsgaard, Jakob; Tranebjærg, Lisbeth; Poulsen, Torben (Ed.): Proceedings of the International Symposium on Auditory and Audiological Research: Vol. 6: Adaptive Processes in Hearing, pp. 263-270, The Danavox Jubilee Foundation 2017, ISBN: 978-87-990013-6-1. @inproceedings{SigurdISAAR2017, title = {Estimating auditory filter bandwidth using distortion product otoacoustic emissions}, author = {Sigurd Møller van Hauen and Andreas Harbo Rukjær and Rodrigo Ordoñez and Dorte Hammershøi}, editor = {Sébastien Santurette and Torsten Dau and Jakob Christensen-Dalsgaard and Lisbeth Tranebjærg and Torben Poulsen}, url = {https://proceedings.isaar.eu/index.php/isaarproc/article/view/2017-32}, isbn = {978-87-990013-6-1}, year = {2017}, date = {2017-08-23}, booktitle = {Proceedings of the International Symposium on Auditory and Audiological Research: Vol. 6: Adaptive Processes in Hearing}, pages = {263-270}, organization = {The Danavox Jubilee Foundation}, abstract = {The basic frequency selectivity in the listener’s hearing is often characterized by auditory filters. These filters are determined through listening tests, which estimate the masking threshold as a function of frequency of the tone and the bandwidth of the masking sound. The auditory filters have been shown to be wider for listeners with sensorineural impairment. In a recent study (Christensen et al., 2017) it was demonstrated on group basis that the distortion product stimulus ratio that provided the strongest 2 f1− f2 component at low frequencies had a strong correlation to the theoretical relation between frequency and auditory filter bandwidth, described by the equivalent rectangular bandwidth (ERB, Glasberg and Moore, 1990). The purpose of the present study is to test whether a similar correlation exists on an individual basis at normal audiometric frequencies. The optimal 2 f1 − f2 DPOAE ratio is determined for stimulus ratios between 1.1 and 1.6, at fixed primary levels (L1/L2 = 65/45 dB SPL). The auditory filters are determined using notched-noise method in a two alternative forced choice experiment with noise levels at 40 dB SPL/Hz. Optimal ratios and auditory filters are determined at 1, 2, and 4 kHz for 10 young normal-hearing subjects.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } The basic frequency selectivity in the listener’s hearing is often characterized by auditory filters. These filters are determined through listening tests, which estimate the masking threshold as a function of frequency of the tone and the bandwidth of the masking sound. The auditory filters have been shown to be wider for listeners with sensorineural impairment. In a recent study (Christensen et al., 2017) it was demonstrated on group basis that the distortion product stimulus ratio that provided the strongest 2 f1− f2 component at low frequencies had a strong correlation to the theoretical relation between frequency and auditory filter bandwidth, described by the equivalent rectangular bandwidth (ERB, Glasberg and Moore, 1990). The purpose of the present study is to test whether a similar correlation exists on an individual basis at normal audiometric frequencies. The optimal 2 f1 − f2 DPOAE ratio is determined for stimulus ratios between 1.1 and 1.6, at fixed primary levels (L1/L2 = 65/45 dB SPL). The auditory filters are determined using notched-noise method in a two alternative forced choice experiment with noise levels at 40 dB SPL/Hz. Optimal ratios and auditory filters are determined at 1, 2, and 4 kHz for 10 young normal-hearing subjects. |
2016 |
Hammershøi, Dorte; Ordoñez, Rodrigo; Christensen, Anders Tornvig More robust estimates for DPOAE level at audiometric frequencies Inproceedings Proceedings of the 22nd International Congress on Acoustics, Buenos Aires, Argentina, September 5-9 2016, pp. 1-9, ICA, 2016. @inproceedings{Hammershøi2016, title = {More robust estimates for DPOAE level at audiometric frequencies}, author = {Dorte Hammershøi and Rodrigo Ordoñez and Anders Tornvig Christensen}, url = {http://www.ica2016.org.ar/ica2016proceedings/ica2016/ICA2016-0885.pdf}, year = {2016}, date = {2016-09-05}, booktitle = {Proceedings of the 22nd International Congress on Acoustics, Buenos Aires, Argentina, September 5-9 2016}, number = {885}, pages = {1-9}, publisher = {ICA}, abstract = {Current clinical methods determine 2 f1 − f2 distortion product oto-acoustic emission (DPAOE) levels at discrete frequencies, and often only at the audiometric standard frequencies in order to save time. The measured result is known to be a superposition of at least two components, the generator component originating from a region around the primary f2, and the reflection component from the 2 f1 − f2 site. Distinct interference patterns in high resolution DPOAE data reveal that these two components can be of similar magnitude, and periodically cancel each other entirely. When measurements are made at only few frequencies, there is a risk to find one or more low amplitude measurement, even in a healthy ear with otherwise high emissions. In the present study, data from previous studies measured with a high frequency resolution is used for simulating a better use of measurements at and around the audiometric frequency. A ”local” model of the two component superposition is applied, and the trade-off between measurement time, and robustness of the measure is discussed.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } Current clinical methods determine 2 f1 − f2 distortion product oto-acoustic emission (DPAOE) levels at discrete frequencies, and often only at the audiometric standard frequencies in order to save time. The measured result is known to be a superposition of at least two components, the generator component originating from a region around the primary f2, and the reflection component from the 2 f1 − f2 site. Distinct interference patterns in high resolution DPOAE data reveal that these two components can be of similar magnitude, and periodically cancel each other entirely. When measurements are made at only few frequencies, there is a risk to find one or more low amplitude measurement, even in a healthy ear with otherwise high emissions. In the present study, data from previous studies measured with a high frequency resolution is used for simulating a better use of measurements at and around the audiometric frequency. A ”local” model of the two component superposition is applied, and the trade-off between measurement time, and robustness of the measure is discussed. |
Andet
2023 |
Narayanan, Sreeram Kaithali; Houmøller, Sabina Storbjerg; Möller, Sören; Wolff, Anne; Lund, Katja; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte The pattern of hearing use in daily life situations in an adult Danish population Conference 16th Congress of the European Federation of Audiology Societies, (0314), European Federation of Audiology Societies 2023. @conference{SKNEFAS20233, title = {The pattern of hearing use in daily life situations in an adult Danish population}, author = {Sreeram Kaithali Narayanan and Sabina Storbjerg Houmøller and Sören Möller and Anne Wolff and Katja Lund and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, year = {2023}, date = {2023-05-06}, booktitle = {16th Congress of the European Federation of Audiology Societies}, number = {0314}, organization = {European Federation of Audiology Societies}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Narayanan, Sreeram Kaithali; Houmøller, Sabina Storbjerg; Wolff, Anne; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte Adoption and outcome for adult hearing aid users one-year post fitting Conference 16th Congress of the European Federation of Audiology Societies, (0317), European Federation of Audiology Societies 2023. @conference{SKNEFAS20232, title = {Adoption and outcome for adult hearing aid users one-year post fitting}, author = {Sreeram Kaithali Narayanan and Sabina Storbjerg Houmøller and Anne Wolff and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, year = {2023}, date = {2023-05-06}, booktitle = {16th Congress of the European Federation of Audiology Societies}, number = {0317}, organization = {European Federation of Audiology Societies}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Narayanan, Sreeram Kaithali; Houmøller, Sabina Storbjerg; Wolff, Anne; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte Do Hearing Aids Help in Real-Life Work-Related Situations? Conference 16th Congress of the European Federation of Audiology Societies, (0304), European Federation of Audiology Societies 2023. @conference{SKNEFAS20230304, title = {Do Hearing Aids Help in Real-Life Work-Related Situations?}, author = {Sreeram Kaithali Narayanan and Sabina Storbjerg Houmøller and Anne Wolff and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, year = {2023}, date = {2023-05-06}, booktitle = {16th Congress of the European Federation of Audiology Societies}, number = {0304}, organization = {European Federation of Audiology Societies}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Ordoñez, Rodrigo; Lund, Katja; Nielsen, Jens Bo; Christiansen, Stine; Houmøller, Sabina Storbjerg; Schmidt, Jesper Hvass; Hammershøi, Dorte Value propositions of public adult hearing rehabilitation in Denmark Conference 16th Congress of the European Federation of Audiology Societies, (0316), European Federation of Audiology Societies 2023. @conference{ROPEFAS2023, title = {Value propositions of public adult hearing rehabilitation in Denmark}, author = {Rodrigo Ordoñez and Katja Lund and Jens Bo Nielsen and Stine Christiansen and Sabina Storbjerg Houmøller and Jesper Hvass Schmidt and Dorte Hammershøi}, year = {2023}, date = {2023-05-06}, booktitle = {16th Congress of the European Federation of Audiology Societies}, number = {0316}, organization = {European Federation of Audiology Societies}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
2022 |
Hammershøi, Dorte; Neher, Tobias The BEAR-project: Consequences for clinical practice Conference The Annual Meeting of the Danish Technical Audiological Society, Danish Technical Audiological Society 2022. @conference{DHDTAS2022, title = {The BEAR-project: Consequences for clinical practice}, author = {Dorte Hammershøi and Tobias Neher}, url = {http://www.dtas.dk/}, year = {2022}, date = {2022-10-08}, booktitle = {The Annual Meeting of the Danish Technical Audiological Society}, organization = {Danish Technical Audiological Society}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Lund, Katja; Ordoñez, Rodrigo; Nielsen, Jens Bo; Christiansen, Stine; Houmøller, Sabina Storbjerg; Schmidt, Jesper Hvass; Gaihede, Michael; Hammershøi, Dorte Harvesting value labels in the Danish public hearing rehabilitation – selecting value propositions for a paired comparison test Conference The Bi-Annual Meeting of the Nordic Audiological Society, Nordic Audiological Society 2022. @conference{KLNAS2022, title = {Harvesting value labels in the Danish public hearing rehabilitation – selecting value propositions for a paired comparison test}, author = {Katja Lund and Rodrigo Ordoñez and Jens Bo Nielsen and Stine Christiansen and Sabina Storbjerg Houmøller and Jesper Hvass Schmidt and Michael Gaihede and Dorte Hammershøi}, year = {2022}, date = {2022-06-01}, booktitle = {The Bi-Annual Meeting of the Nordic Audiological Society}, organization = {Nordic Audiological Society}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Narayanan, Sreeram Kaithali; Rye, Palle; Houmøller, Sabina S; Wolff, Anne; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper Hvass; Hammershøi, Dorte Relation between audibility and self-reported outcome in a large cohort of adult hearing aid users Conference The Bi-Annual Meeting of the Nordic Audiological Society, Nordic Audiological Society 2022. @conference{SKNNAS2023, title = {Relation between audibility and self-reported outcome in a large cohort of adult hearing aid users}, author = {Sreeram Kaithali Narayanan and Palle Rye and Sabina S Houmøller and Anne Wolff and Dan Dupont Hougaard and Michael Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, year = {2022}, date = {2022-06-01}, booktitle = {The Bi-Annual Meeting of the Nordic Audiological Society}, organization = {Nordic Audiological Society}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Rye, Palle; Andersen, Rasmus Overgaard; Hammershøi, Dorte Efficacy of Gamification in Out-of-Clinic Hearing Diagnostics Inproceedings Poster presentation at the Joint Euroregio Baltic Nordic Acoustics Meeting, Aalborg, Denmark, 2022. @inproceedings{palle2_ERBNAM2022, title = {Efficacy of Gamification in Out-of-Clinic Hearing Diagnostics}, author = {Palle Rye and Rasmus Overgaard Andersen and Dorte Hammershøi}, url = {https://isaar.eu/wp-content/uploads/2021/08/Programme-book-ISAAR-2021.pdf}, year = {2022}, date = {2022-05-11}, booktitle = {Poster presentation at the Joint Euroregio Baltic Nordic Acoustics Meeting, Aalborg, Denmark}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Narayanan, Sreeram Kaithali; Houmøller, Sabina S; Wolff, Anne; Tsai, Li-Tang; Lund, Katja; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper H; Hammershøi, Dorte Situations where users always wear or take off their hearing aids Inproceedings Oral presentation at the Joint Euroregio Baltic Nordic Acoustics Meeting, Aalborg, Denmark, 2022. @inproceedings{SKN_ERBNAM2022, title = {Situations where users always wear or take off their hearing aids}, author = {Sreeram Kaithali Narayanan and Sabina S Houmøller and Anne Wolff and Li-Tang Tsai and Katja Lund and Dan Dupont Hougaard and Michael Gaihede and Jesper H Schmidt and Dorte Hammershøi}, url = {https://www.conforg.fr/bin/time_table?dir=erbnam2022}, year = {2022}, date = {2022-05-09}, booktitle = {Oral presentation at the Joint Euroregio Baltic Nordic Acoustics Meeting, Aalborg, Denmark}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
2021 |
Rye, Palle; Hammershøi, Dorte Impact of background noise on methods for categorical loudness scaling Inproceedings Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions, 2021. @inproceedings{palle1_ISAAR2021, title = {Impact of background noise on methods for categorical loudness scaling}, author = {Palle Rye and Dorte Hammershøi}, url = {https://isaar.eu/wp-content/uploads/2021/08/Programme-book-ISAAR-2021.pdf}, year = {2021}, date = {2021-08-26}, booktitle = {Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Rye, Palle; Hammershøi, Dorte Gamification approach to out-of-clinic hearing diagnostics Inproceedings Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions, 2021. @inproceedings{palle2_Isaar2021, title = {Gamification approach to out-of-clinic hearing diagnostics}, author = {Palle Rye and Dorte Hammershøi}, url = {https://isaar.eu/wp-content/uploads/2021/08/Programme-book-ISAAR-2021.pdf}, year = {2021}, date = {2021-08-25}, booktitle = {Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Ordoñez, Rodrigo; Lund, Katja; Nielsen, Jens Bo; Rye, Palle; Cañete, Oscar M; Stubberup, Amalie T; Petersen, Lotte S E; Schmidt, Jesper H; Hougaard, Dan Dupont; Gaihede, Michael; Loquet, Gérard; Hammershøi, Dorte Probing first-fit experiences in adult new hearing aid users Inproceedings Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions, 2021, 2021. @inproceedings{katja_ISAAR2021, title = {Probing first-fit experiences in adult new hearing aid users}, author = {Rodrigo Ordoñez and Katja Lund and Jens Bo Nielsen and Palle Rye and Oscar M Cañete and Amalie T. Stubberup and Lotte S. E. Petersen and Jesper H Schmidt and Dan Dupont Hougaard and Michael Gaihede and Gérard Loquet and Dorte Hammershøi}, url = {https://isaar.eu/wp-content/uploads/2021/08/Programme-book-ISAAR-2021.pdf}, year = {2021}, date = {2021-08-23}, booktitle = {Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions, 2021}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Cañete, Oscar M; Stubberup, Amalie T; Petersen, Lotte S E; Sánchez, Raul; Nielsen, Jens Bo; Lund, Katja; Ordoñez, Rodrigo; Schmidt, Jesper H; Hougaard, Dan Dupont; Schnack-Petersen, Rikke; Gaihede, Michael; Hammershøi, Dorte; Loquet, Gérard Clinical implementation of the Better hEAring Rehabilitation (BEAR) new strategies to improve hearing aid fitting process Inproceedings Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions, 2021. @inproceedings{oscar_ISAAR2021, title = {Clinical implementation of the Better hEAring Rehabilitation (BEAR) new strategies to improve hearing aid fitting process}, author = {Oscar M Cañete and Amalie T. Stubberup and Lotte S. E. Petersen and Raul Sánchez and Jens Bo Nielsen and Katja Lund and Rodrigo Ordoñez and Jesper H Schmidt and Dan Dupont Hougaard and Rikke Schnack-Petersen and Michael Gaihede and Dorte Hammershøi and Gérard Loquet}, url = {https://isaar.eu/wp-content/uploads/2021/08/Programme-book-ISAAR-2021.pdf}, year = {2021}, date = {2021-08-23}, booktitle = {Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Narayanan, Sreeram Kaithali; Wolff, Anne; Houmøller, Sabina S; Tsai, Li-Tang; Hougaard, Dan Dupont; Gaihede, Michael; Schmidt, Jesper H; Hammershøi, Dorte Timeline and preference of the hearing aid adjustments over a year of rehabilitation and relation to self-reported outcome Inproceedings Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions, 2021. @inproceedings{Sreeram_ISAAR2021, title = {Timeline and preference of the hearing aid adjustments over a year of rehabilitation and relation to self-reported outcome}, author = {Sreeram Kaithali Narayanan and Anne Wolff and Sabina S Houmøller and Li-Tang Tsai and Dan Dupont Hougaard and Michael Gaihede and Jesper H Schmidt and Dorte Hammershøi}, url = {https://isaar.eu/wp-content/uploads/2021/08/Programme-book-ISAAR-2021.pdf}, year = {2021}, date = {2021-08-23}, booktitle = {Oral presentation at the International Symposium on Auditory and Audiological Research: Vol 8: The Auditory System Throughout Life – Models, Mechanisms, and Interventions}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
2020 |
Hammershøi, Dorte Mobile tools from the BEAR project Conference Workshop on "e-trends in Audiology: University teaching, mobile tools and multilinguality", hosted by Carl von Ossietzky University, Oldenburg, Germany, EFAS (European Fedration of Audiology Societies) 2020. @conference{EFAS2020Mobile, title = {Mobile tools from the BEAR project}, author = {Dorte Hammershøi }, url = {https://efas2020.hoertech.de/index.php?show=2}, year = {2020}, date = {2020-09-25}, booktitle = {Workshop on "e-trends in Audiology: University teaching, mobile tools and multilinguality", hosted by Carl von Ossietzky University, Oldenburg, Germany}, organization = {EFAS (European Fedration of Audiology Societies)}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
2019 |
Houmøller, Sabina Storbjerg; Wolff, Anne; Narne, Vijaya; Loquet, Gérard; Hougaard, Dan Dupont; Hammershøi, Dorte; Godballe, Christian; Schmidt, Jesper Hvass Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems, (SP.20), The Danavox Jubilee Foundation 2019. @conference{isaar2019ssh, title = {Hearing aid satisfaction and differences in self-reported and data logged hearing aid usage time for experienced and first time users}, author = {Sabina Storbjerg Houmøller and Anne Wolff and Vijaya Narne and Gérard Loquet and Dan Dupont Hougaard and Dorte Hammershøi and Christian Godballe and Jesper Hvass Schmidt}, url = {https://whova.com/embedded/speaker_session_detail/isaar_201908/701041/}, year = {2019}, date = {2019-08-21}, booktitle = {Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems}, number = {SP.20}, organization = {The Danavox Jubilee Foundation}, abstract = {Background: Hearing aid (HA) satisfaction is assessed by the self-administered International Outcome Inventory of Hearing Aids (IOI-HA) questionnaire. Objectives: The aims of the current study were to investigate the level of HA satisfaction for experienced and first time HA users, and to evaluate any difference between self-reported and objectively measured HA usage time (through data logging). Design: Self-reported questionnaire survey. Patients enrolled in the national BEAR project, from January 2017 to January 2018, answered the seven-item IOI-HA questionnaire targeting different hearing outcome domains; each scored from 1-5. Data logged HA usage time was obtained at two months follow-up visits and compared to the self-reported usage time obtained from the initial IOI-HA questionnaire item. Results: The study population (n=1649) comprised of both experienced (n=458) and first time HA users (n=1191). Total mean IOI-HA scores for experienced HA users increased by ∆0,36 (SD=0,92). Differences in levels of satisfaction between the two groups were further analyzed. Moreover, data logged usage time for experienced users was 10.4 hours (SD=5,10) and 8.35 hours (SD=1,02) for first time users. 15,9% of experienced users (n=422) reported in average a usage time from 4 to 8 hours whereas 21,5% of first time users (n=1152) reported in average 4 to 8 hours usage time.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } Background: Hearing aid (HA) satisfaction is assessed by the self-administered International Outcome Inventory of Hearing Aids (IOI-HA) questionnaire. Objectives: The aims of the current study were to investigate the level of HA satisfaction for experienced and first time HA users, and to evaluate any difference between self-reported and objectively measured HA usage time (through data logging). Design: Self-reported questionnaire survey. Patients enrolled in the national BEAR project, from January 2017 to January 2018, answered the seven-item IOI-HA questionnaire targeting different hearing outcome domains; each scored from 1-5. Data logged HA usage time was obtained at two months follow-up visits and compared to the self-reported usage time obtained from the initial IOI-HA questionnaire item. Results: The study population (n=1649) comprised of both experienced (n=458) and first time HA users (n=1191). Total mean IOI-HA scores for experienced HA users increased by ∆0,36 (SD=0,92). Differences in levels of satisfaction between the two groups were further analyzed. Moreover, data logged usage time for experienced users was 10.4 hours (SD=5,10) and 8.35 hours (SD=1,02) for first time users. 15,9% of experienced users (n=422) reported in average a usage time from 4 to 8 hours whereas 21,5% of first time users (n=1152) reported in average 4 to 8 hours usage time. |
Hammershøi, Dorte Highlights from the better hearing rehabilitation (BEAR) project in Denmark Conference Invited presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems, (S1.07), The Danavox Jubilee Foundation 2019. @conference{isaar2019dh, title = {Highlights from the better hearing rehabilitation (BEAR) project in Denmark}, author = {Dorte Hammershøi}, url = {https://whova.com/embedded/speaker_session_detail/isaar_201908/683339/}, year = {2019}, date = {2019-08-21}, booktitle = {Invited presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems}, number = {S1.07}, organization = {The Danavox Jubilee Foundation}, abstract = {The BEAR project runs from 2016-2021, and includes several scientific efforts, incl. the collection of data for almost 2.000 patients fitted according to current practice, development and assessment of new diagnostics for profiling and fitting strategies, as well as development and assessment of methods for measurement of the aided performance. The on-going work includes a proposal for a differentiated fitting based on extended auditory profiles and is accompanied by both in- and out-of-clinic options for testing and/or reporting on the aided performance experience. Future work will include an experimental validation of the proposed differentiated fitting, as well as a separate effort to investigate common denominators for patients with poor compensation benefits and options for out-of-clinic application of the proposed methods.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } The BEAR project runs from 2016-2021, and includes several scientific efforts, incl. the collection of data for almost 2.000 patients fitted according to current practice, development and assessment of new diagnostics for profiling and fitting strategies, as well as development and assessment of methods for measurement of the aided performance. The on-going work includes a proposal for a differentiated fitting based on extended auditory profiles and is accompanied by both in- and out-of-clinic options for testing and/or reporting on the aided performance experience. Future work will include an experimental validation of the proposed differentiated fitting, as well as a separate effort to investigate common denominators for patients with poor compensation benefits and options for out-of-clinic application of the proposed methods. |
Wolff, Anne; Schmidt, Jesper Hvass; Houmøller, Sabina Storbjerg; Narne, Vijay; Hougaard, Dan Dupont; Gaihede, Michael; Loquet, Gérard; Hammershøi, Dorte Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems, (SP.76), The Danavox Jubilee Foundation 2019. @conference{isaar2019aw, title = {Health-related quality of life within a cohort of hearing impaired danish adults before and after hearing aid rehabilitation}, author = {Anne Wolff and Jesper Hvass Schmidt and Sabina Storbjerg Houmøller and Vijay Narne and Dan Dupont Hougaard and Michael Gaihede and Gérard Loquet and Dorte Hammershøi}, url = {https://whova.com/embedded/speaker_session_detail/isaar_201908/701170/}, year = {2019}, date = {2019-08-21}, booktitle = {Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems}, number = {SP.76}, organization = {The Danavox Jubilee Foundation}, abstract = {15D is a standardized, self-administered, generic questionnaire that provides a profile (D1-15 score) and a single index score (D15-score) as a measure of health-related quality of life (HRQoL) on a scale which ranges from zero to one. 15D also includes a question related to hearing (D3). When completed before and after hearing aid (HA) treatment the questionnaire can be used to assess the potential benefits of HA treatment related to HRQoL. Overall health status was collected by questionnaires (15D and a basic health-related questionnaire) before and two months after HA fitting. The study population (n=1536) comprised first time HA users (n=1096) and experienced HA users (n=440) enrolled in the BEAR project. HA resulted in improved mean score of D3 for both first time (∆D3: mean, SD (0.102; 0.19)) and experienced (∆D3: mean, SD (0.083; 0.20)) HA users after 2 months of HA use. Patients with "moderate to severe" and "severe" hearing loss, experienced a significant improvement in D3-HRQoL. The study supports that HA usage has a positive effect on HRQoL when looking at the hearing dimension. Degree of hearing loss alone does not explain the positive effect observed on D3-HRQoL. Therefore, additional parameters need to be studied in order to explain essential factors for patients with HL to be able to achieve an improvement of HRQoL following HA fitting.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } 15D is a standardized, self-administered, generic questionnaire that provides a profile (D1-15 score) and a single index score (D15-score) as a measure of health-related quality of life (HRQoL) on a scale which ranges from zero to one. 15D also includes a question related to hearing (D3). When completed before and after hearing aid (HA) treatment the questionnaire can be used to assess the potential benefits of HA treatment related to HRQoL. Overall health status was collected by questionnaires (15D and a basic health-related questionnaire) before and two months after HA fitting. The study population (n=1536) comprised first time HA users (n=1096) and experienced HA users (n=440) enrolled in the BEAR project. HA resulted in improved mean score of D3 for both first time (∆D3: mean, SD (0.102; 0.19)) and experienced (∆D3: mean, SD (0.083; 0.20)) HA users after 2 months of HA use. Patients with "moderate to severe" and "severe" hearing loss, experienced a significant improvement in D3-HRQoL. The study supports that HA usage has a positive effect on HRQoL when looking at the hearing dimension. Degree of hearing loss alone does not explain the positive effect observed on D3-HRQoL. Therefore, additional parameters need to be studied in order to explain essential factors for patients with HL to be able to achieve an improvement of HRQoL following HA fitting. |
Lund, Katja; Ordoñez, Rodrigo; Nielsen, Jens Bo; Hammershøi, Dorte Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems, (SP.41), The Danavox Jubilee Foundation 2019. @conference{isaar2019kl, title = {"Yes, I have experienced that!" - How daily life experiences may be harvested from new hearing aid users}, author = {Katja Lund and Rodrigo Ordoñez and Jens Bo Nielsen and Dorte Hammershøi}, url = {https://whova.com/embedded/speaker_session_detail/isaar_201908/700936/}, year = {2019}, date = {2019-08-21}, booktitle = {Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems}, number = {SP.41}, organization = {The Danavox Jubilee Foundation}, abstract = {The aim of the present pilot study was to assess daily life experiences of new hearing aid users and explore ways to utilize these assessments in a follow-up situation with the hearing care provider. The method was designed as an online pass-time activity, where the patients swipe through the randomly presented experiences, and select the ones they have had recently. The sentences were expected to evoke the memory of recent experiences and provide a language for the patients to describe these. Thirty new hearing aid users were included in the study. Data were collected over a period of two months and consisted of 453 pre-fabricated sentences representing experiences related to HA use. Each sentence correlated with one of 13 categories covering both auditory and non-auditory aspects. Data for each patient was visualized to elucidate both short- and long-term challenges and successes experienced, as well as irrelevant and not experienced situations. Presently the first three patients included in the study have completed a two-month follow-up. The overall response rate is 63% taking into account that some patients may not have started the log activity yet as the work is ongoing.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } The aim of the present pilot study was to assess daily life experiences of new hearing aid users and explore ways to utilize these assessments in a follow-up situation with the hearing care provider. The method was designed as an online pass-time activity, where the patients swipe through the randomly presented experiences, and select the ones they have had recently. The sentences were expected to evoke the memory of recent experiences and provide a language for the patients to describe these. Thirty new hearing aid users were included in the study. Data were collected over a period of two months and consisted of 453 pre-fabricated sentences representing experiences related to HA use. Each sentence correlated with one of 13 categories covering both auditory and non-auditory aspects. Data for each patient was visualized to elucidate both short- and long-term challenges and successes experienced, as well as irrelevant and not experienced situations. Presently the first three patients included in the study have completed a two-month follow-up. The overall response rate is 63% taking into account that some patients may not have started the log activity yet as the work is ongoing. |
Narayanan, Sreeram Kaithali; Piechowiak, Tobias; Wolff, Anne; Houmøller, Sabina Storbjerg; Narne, Vijay; Loquet, Gérard; Hougaard, Dan Dupont; Gaihede, Michael L; Schmidt, Jesper Hvass; Hammershøi, Dorte Speech related hearing aid benefit index derived from standardized self-reported questionnaire data Conference Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems, (SP.50), The Danavox Jubilee Foundation 2019. @conference{isaar2019skn, title = {Speech related hearing aid benefit index derived from standardized self-reported questionnaire data}, author = {Sreeram Kaithali Narayanan and Tobias Piechowiak and Anne Wolff and Sabina Storbjerg Houmøller and Vijay Narne and Gérard Loquet and Dan Dupont Hougaard and Michael L Gaihede and Jesper Hvass Schmidt and Dorte Hammershøi}, url = {https://whova.com/embedded/speaker_session_detail/isaar_201908/701058/}, year = {2019}, date = {2019-08-21}, booktitle = {Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems}, number = {SP.50}, organization = {The Danavox Jubilee Foundation}, abstract = {Speech understanding in noisy environments has been the most desired hearing aid (HA) benefit sought by hearing aid users. This paper examines the possibility of developing a speech related HA benefit index from correlated speech related questions from three different self-reported questionnaire's (SSQ12, IOI-HA, and 15D). The 4 questions in SSQ12 (question number 1,4,11 and 12), 3 questions in IOI-HA(question number 3,5 and 6) and 3rd question from health-related quality of life questionnaire 15D relating to speech were found correlated and are chosen for further analysis. After the normalization of the relevant questions, a principal component analysis (PCA) is used to reduce the dimensionality and determine the coefficients. The resultant coefficients are used to create a common speech related HA benefit index.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } Speech understanding in noisy environments has been the most desired hearing aid (HA) benefit sought by hearing aid users. This paper examines the possibility of developing a speech related HA benefit index from correlated speech related questions from three different self-reported questionnaire's (SSQ12, IOI-HA, and 15D). The 4 questions in SSQ12 (question number 1,4,11 and 12), 3 questions in IOI-HA(question number 3,5 and 6) and 3rd question from health-related quality of life questionnaire 15D relating to speech were found correlated and are chosen for further analysis. After the normalization of the relevant questions, a principal component analysis (PCA) is used to reduce the dimensionality and determine the coefficients. The resultant coefficients are used to create a common speech related HA benefit index. |
Rye, Palle; Ordoñez, Rodrigo; Wolff, Anne; Hougaard, Dan Dupont; Schmidt, Jesper Hvass; Hammershøi, Dorte Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems, (SP.64), The Danavox Jubilee Foundation 2019. @conference{ISAAR2019PR, title = {A study of reliability and response patterns in self-administered audiometry for adult first-time hearing-aid users}, author = {Palle Rye and Rodrigo Ordoñez and Anne Wolff and Dan Dupont Hougaard and Jesper Hvass Schmidt and Dorte Hammershøi}, url = {https://whova.com/embedded/speaker_session_detail/isaar_201908/701149/}, year = {2019}, date = {2019-08-21}, booktitle = {Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems}, number = {SP.64}, organization = {The Danavox Jubilee Foundation}, abstract = {Out-of-clinic diagnostics offer the advantage of pre- and post-clinical screenings and potential benefits of increased user ownership, but at the possible cost of accuracy and reliability. The present study examines the determination of a classical audiometric threshold through a custom-made self-administered tablet test, utilizing off-the-shelf Bluetooth headphones. The test includes an initial familiarization session allowing characterization of the user's response time, and integrates a standard usability assessment (System Usability Scale, SUS) accompanied by the experimenter's observations and exit-interview responses. The study compares self-administered thresholds determined in the waiting room of Aalborg University Hospital for 16 potential hearing-aid users with the thresholds determined by the professionals in the subsequent session. The study also includes a comparison of thresholds determined in potential users' own homes, in which case the test is performed both with a standard transportable audiometer and with the out-of-clinic tablet system. The study is on-going.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } Out-of-clinic diagnostics offer the advantage of pre- and post-clinical screenings and potential benefits of increased user ownership, but at the possible cost of accuracy and reliability. The present study examines the determination of a classical audiometric threshold through a custom-made self-administered tablet test, utilizing off-the-shelf Bluetooth headphones. The test includes an initial familiarization session allowing characterization of the user's response time, and integrates a standard usability assessment (System Usability Scale, SUS) accompanied by the experimenter's observations and exit-interview responses. The study compares self-administered thresholds determined in the waiting room of Aalborg University Hospital for 16 potential hearing-aid users with the thresholds determined by the professionals in the subsequent session. The study also includes a comparison of thresholds determined in potential users' own homes, in which case the test is performed both with a standard transportable audiometer and with the out-of-clinic tablet system. The study is on-going. |
Hammershøi, Dorte; Wolff, Anne; Andersen, Lykke Junker; Mortensen, Rikke Louise; Nielsen, Mads Dalsgaard; Larsen, Stefanie Aagard Skov Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems, (SP.17), The Danavox Jubilee Foundation 2019. @conference{ISAAR2019PDP780, title = {A word elicitation study including the development of scales characterizing aided listening experience}, author = {Dorte Hammershøi and Anne Wolff and Lykke Junker Andersen and Rikke Louise Mortensen and Mads Dalsgaard Nielsen and Stefanie Aagard Skov Larsen}, url = {https://whova.com/embedded/speaker_session_detail/isaar_201908/700915/}, year = {2019}, date = {2019-08-21}, booktitle = {Poster presentation at the International Symposium on Auditory and Audiological Research: Vol. 7: Auditory Learning in Biological and Artificial Systems}, number = {SP.17}, organization = {The Danavox Jubilee Foundation}, abstract = {The purpose of the present study was to identify the terms hearing aid professionals and their patients use in the communication about the aided listening experience and develop scales that would help characterize this experience in the domain of corrective actions that a hearing care professional may apply. The study comprised a word elicitation study based on observations and interviews from 18 examinations, involving 7 audiologists, 2 medical audiologists, and 15 adult patients from the audiological department at Aalborg University Hospital. The words patients and professionals used for describing the aided listening experience were itemized, noted on cards, and analyzed by developing an affinity diagram. The resulting 80 words were then sorted by three hearing professionals in a supervised card sorting session, leaving 65 attributes (grouped in 13 main categories) that was considered suitable for suggesting corrective actions. These 65 attributes were included in a 63-point scale design, which (in a usability test including 8 hearing aid users) were considered easy to survey and use, but also including some redundancy and ambiguities. The results suggest that it is possible to develop scales based on the voluntary statements expressed during actual consultations, but that the expressions may not be interpreted the same way by other patients and professionals.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } The purpose of the present study was to identify the terms hearing aid professionals and their patients use in the communication about the aided listening experience and develop scales that would help characterize this experience in the domain of corrective actions that a hearing care professional may apply. The study comprised a word elicitation study based on observations and interviews from 18 examinations, involving 7 audiologists, 2 medical audiologists, and 15 adult patients from the audiological department at Aalborg University Hospital. The words patients and professionals used for describing the aided listening experience were itemized, noted on cards, and analyzed by developing an affinity diagram. The resulting 80 words were then sorted by three hearing professionals in a supervised card sorting session, leaving 65 attributes (grouped in 13 main categories) that was considered suitable for suggesting corrective actions. These 65 attributes were included in a 63-point scale design, which (in a usability test including 8 hearing aid users) were considered easy to survey and use, but also including some redundancy and ambiguities. The results suggest that it is possible to develop scales based on the voluntary statements expressed during actual consultations, but that the expressions may not be interpreted the same way by other patients and professionals. |
Lund, Katja; Ordoñez, Rodrigo; Nielsen, Jens Bo; Hammershøi, Dorte Sentence-based experience-logging in new hearing aid users Conference Poster presentation at the Conference for Internet and Audiology, Southampton, 17-19 June 2019., (15), 2019. @conference{IaA2019KL, title = {Sentence-based experience-logging in new hearing aid users}, author = {Katja Lund and Rodrigo Ordoñez and Jens Bo Nielsen and Dorte Hammershøi}, url = {http://internetaudiology.com/2019/files/IA2019_booklet.pdf}, year = {2019}, date = {2019-06-17}, booktitle = {Poster presentation at the Conference for Internet and Audiology, Southampton, 17-19 June 2019.}, number = {15}, pages = {28}, abstract = {Patients often experience hearing difficulties despite the use of HA (hearing aids). The difficulties may be related to a number of auditory and non-auditory factors such as benefit, comfort, maintenance etc. It is difficult for both the patient and the audiologist to know, if the fitting and the given outcome is the best possible. The sound may be experienced differently in the clinic compared to daily life and the knowledge and skills related to hearing aid use vary largely from patient to patient. The aim of the present study is to gain insight into the daily experiences of new hearing aid users, which may shed light on aspects of aided performance, which may not be unveiled through standard questionnaires or during consultation. Data is collected online and consists of more than 400 pre-fabricated sentences representing experiences related to HA use. The sentences have been developed based on observations, involvement of experts, and inspired by elements from validated questionnaires. Patients are asked to relate to each experience (sentence) on a regular basis over a period of two months. The method is designed as a pass-time activity, where the patients swipe through the randomly presented experiences, and select the ones they have had recently. The sentences are expected to evoke the memory of recent experiences in the patients and at the same time provide a language to describe these. The two-month data-logging is expected to elucidate the short- and long-term challenges of each patient and thus provide a useful feedback – and maybe adjustment – tool in a follow-up situation. The work is on-going. Data will be analyzed and if feasible, summarized in a feedback tool for the professionals for a two-month follow-up. The study is part of BEAR project funded by Innovation Fund Denmark and partners (incl. Oticon, GN Resound and Widex). Funding and collaboration is sincerely appreciated.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } Patients often experience hearing difficulties despite the use of HA (hearing aids). The difficulties may be related to a number of auditory and non-auditory factors such as benefit, comfort, maintenance etc. It is difficult for both the patient and the audiologist to know, if the fitting and the given outcome is the best possible. The sound may be experienced differently in the clinic compared to daily life and the knowledge and skills related to hearing aid use vary largely from patient to patient. The aim of the present study is to gain insight into the daily experiences of new hearing aid users, which may shed light on aspects of aided performance, which may not be unveiled through standard questionnaires or during consultation. Data is collected online and consists of more than 400 pre-fabricated sentences representing experiences related to HA use. The sentences have been developed based on observations, involvement of experts, and inspired by elements from validated questionnaires. Patients are asked to relate to each experience (sentence) on a regular basis over a period of two months. The method is designed as a pass-time activity, where the patients swipe through the randomly presented experiences, and select the ones they have had recently. The sentences are expected to evoke the memory of recent experiences in the patients and at the same time provide a language to describe these. The two-month data-logging is expected to elucidate the short- and long-term challenges of each patient and thus provide a useful feedback – and maybe adjustment – tool in a follow-up situation. The work is on-going. Data will be analyzed and if feasible, summarized in a feedback tool for the professionals for a two-month follow-up. The study is part of BEAR project funded by Innovation Fund Denmark and partners (incl. Oticon, GN Resound and Widex). Funding and collaboration is sincerely appreciated. |
Rye, Palle; Ordoñez, Rodrigo; Hammershøi, Dorte Out-of-clinic diagnostics of hearing impairment Conference Poster presentation at the Conference for Internet and Audiology, Southampton, 17-19 June 2019., (13), 2019. @conference{IaA2019PR, title = {Out-of-clinic diagnostics of hearing impairment}, author = {Palle Rye and Rodrigo Ordoñez and Dorte Hammershøi}, url = {http://internetaudiology.com/2019/files/IA2019_booklet.pdf}, year = {2019}, date = {2019-06-17}, booktitle = {Poster presentation at the Conference for Internet and Audiology, Southampton, 17-19 June 2019.}, number = {13}, pages = {27}, abstract = {The potential benefits of out-of-clinic diagnostics are manifold: it may be used to alleviate clinically trained personnel where resources are scarce, it may reduce the need for travel and it allows for increased privacy and discretion for the potentially hearing impaired, who may see a self-administered hearing test as the first step toward accepting the need for a hearing aid. However, one of the inherent problems of such test situations is the lack of control over the user behavior and the test environment. With respect to the latter, the exact characteristics of the equipment used may not be known or available for routine checks and calibration. Background noise levels may pose a problem in some environments, and be a problem for subjects with audiometric thresholds near normal hearing level at some frequencies. Several strategies can be applied to overcome these challenges. Some types of hearing impairment can be characterized using supra-threshold methods that are more robust to background noise and calibration issues. The background noise level may be passively or actively suppressed, or monitored and applied to discard or repeat unreliable measurements. The purpose of present study is to examine the feasibility of selected out-of-clinic test strategies, and in a first evaluation the effect of each is quantified in laboratory assessments, where the key variables can be controlled. A platform consisting of a tablet-based automated paradigm using commercially available active noise cancelling headphones will be used. The accuracy of the procedures in real-life scenarios are determined by comparing the outcome with clinically determined audiometric measures. How well the test subjects manage the test will also be assessed, and data from a usability point of view will be collected.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } The potential benefits of out-of-clinic diagnostics are manifold: it may be used to alleviate clinically trained personnel where resources are scarce, it may reduce the need for travel and it allows for increased privacy and discretion for the potentially hearing impaired, who may see a self-administered hearing test as the first step toward accepting the need for a hearing aid. However, one of the inherent problems of such test situations is the lack of control over the user behavior and the test environment. With respect to the latter, the exact characteristics of the equipment used may not be known or available for routine checks and calibration. Background noise levels may pose a problem in some environments, and be a problem for subjects with audiometric thresholds near normal hearing level at some frequencies. Several strategies can be applied to overcome these challenges. Some types of hearing impairment can be characterized using supra-threshold methods that are more robust to background noise and calibration issues. The background noise level may be passively or actively suppressed, or monitored and applied to discard or repeat unreliable measurements. The purpose of present study is to examine the feasibility of selected out-of-clinic test strategies, and in a first evaluation the effect of each is quantified in laboratory assessments, where the key variables can be controlled. A platform consisting of a tablet-based automated paradigm using commercially available active noise cancelling headphones will be used. The accuracy of the procedures in real-life scenarios are determined by comparing the outcome with clinically determined audiometric measures. How well the test subjects manage the test will also be assessed, and data from a usability point of view will be collected. |
Loquet, Gérard; Narne, Vijay; Piechowiak, Tobias; Wolff, Anne; Houmøller, Sabina Storbjerg; Hougaard, Dan Dupont; Schmidt, Jesper Hvass; Hammershøi, Dorte Better Hearing Rehabilitation (BEAR) Study in Denmark: Introducing the Centralized Clinical Database Conference Poster at the 14th Congress of the European Federation of Audiology Societies (EFAS 2019), Lisbon, Portugal, 22-25 May 2019, (04087-P080), European Federation of Audiology Societies 2019. @conference{EFAS2019GL, title = {Better Hearing Rehabilitation (BEAR) Study in Denmark: Introducing the Centralized Clinical Database}, author = {Gérard Loquet and Vijay Narne and Tobias Piechowiak and Anne Wolff and Sabina Storbjerg Houmøller and Dan Dupont Hougaard and Jesper Hvass Schmidt and Dorte Hammershøi}, url = {https://fff0e2ea-6f01-41b9-b0dd-7dbdf3580dbb.filesusr.com/ugd/09d8d3_dc3fb64898554097a7427d3d03a1f290.pdf}, year = {2019}, date = {2019-05-22}, booktitle = {Poster at the 14th Congress of the European Federation of Audiology Societies (EFAS 2019), Lisbon, Portugal, 22-25 May 2019}, number = {04087-P080}, organization = {European Federation of Audiology Societies}, abstract = {Background: The purpose of the BEAR project is to improve hearing loss management by revising diagnostic techniques and hearing aid fitting practices based on individual hearing profiles, expectations and lifestyle. As a starting point, a large clinical database has been prepared to better characterize the current clinical status in Denmark. The analysis will be used to identify the main challenges faced by hearing aid users in order to develop appropriate tools to improve performances. Method: The study is a multicentre, prospective, open, non-randomized, single-arm trial with sequential enrolment of all qualified patients, conducted under a common clinical investigation plan. Up to almost 2,000 evaluable patients have been enrolled from two Danish clinics. After having undergone medical and audiological examination and other assessments (health related and quality of life questionnaires), the patients were prescribed a hearing aid and got a fitting. Approximately 2 months later, a follow-up visit took place and whenever needed an adjustment was offered (plus other assessments). An across-center database, hosted independently from clinics, universities and hearing-aid manufacturers but accessible by all parties, was created to gather the data (access granted to each partner if data managers adhere to ethical permissions and requirements for data security). Results: The investigation generated approximately 30’000 patient records and we started by characterizing the general distribution of audiometric data (air and bone conductions, speech tests) and questionnaires (health, speech, hearing aids, tinnitus and quality of life related). The analysis focused specifically on correlations detection between demographics, audiometric tests and questionnaires in order to classify patients into subsets. Conclusion: The present clinical database should be seen as a starting point for other BEAR work packages. We believe that such large variety of data generated will lead to a more comprehensive picture of the hearing-aid user and will bring benefits to both clinicians and manufacturers. Indeed, this first step represents the baseline against which new fitting strategies will be tested. Alternatively, clinically relevant subpopulations with low hearing-aid benefit will be identified and studied to tentatively bring alternatives in rehabilitation.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } Background: The purpose of the BEAR project is to improve hearing loss management by revising diagnostic techniques and hearing aid fitting practices based on individual hearing profiles, expectations and lifestyle. As a starting point, a large clinical database has been prepared to better characterize the current clinical status in Denmark. The analysis will be used to identify the main challenges faced by hearing aid users in order to develop appropriate tools to improve performances. Method: The study is a multicentre, prospective, open, non-randomized, single-arm trial with sequential enrolment of all qualified patients, conducted under a common clinical investigation plan. Up to almost 2,000 evaluable patients have been enrolled from two Danish clinics. After having undergone medical and audiological examination and other assessments (health related and quality of life questionnaires), the patients were prescribed a hearing aid and got a fitting. Approximately 2 months later, a follow-up visit took place and whenever needed an adjustment was offered (plus other assessments). An across-center database, hosted independently from clinics, universities and hearing-aid manufacturers but accessible by all parties, was created to gather the data (access granted to each partner if data managers adhere to ethical permissions and requirements for data security). Results: The investigation generated approximately 30’000 patient records and we started by characterizing the general distribution of audiometric data (air and bone conductions, speech tests) and questionnaires (health, speech, hearing aids, tinnitus and quality of life related). The analysis focused specifically on correlations detection between demographics, audiometric tests and questionnaires in order to classify patients into subsets. Conclusion: The present clinical database should be seen as a starting point for other BEAR work packages. We believe that such large variety of data generated will lead to a more comprehensive picture of the hearing-aid user and will bring benefits to both clinicians and manufacturers. Indeed, this first step represents the baseline against which new fitting strategies will be tested. Alternatively, clinically relevant subpopulations with low hearing-aid benefit will be identified and studied to tentatively bring alternatives in rehabilitation. |
Lund, Katja; Hammershøi, Dorte How professionals assess outcome in clinical hearing rehabilitation Conference Presentation at the 14th Congress of the European Federation of Audiology Societies (EFAS 2019), Lisbon, Portugal, 22-25 May 2019, (04039), 2019. @conference{EFAS2019KL, title = {How professionals assess outcome in clinical hearing rehabilitation}, author = {Katja Lund and Dorte Hammershøi}, url = {https://fff0e2ea-6f01-41b9-b0dd-7dbdf3580dbb.filesusr.com/ugd/09d8d3_dc3fb64898554097a7427d3d03a1f290.pdf}, year = {2019}, date = {2019-05-22}, booktitle = {Presentation at the 14th Congress of the European Federation of Audiology Societies (EFAS 2019), Lisbon, Portugal, 22-25 May 2019}, number = {04039}, abstract = {Background: Denmark has currently no formal requirements for testing and documenting the aided listening performance and outcome obtained with hearing aids rehabilitation. Yet most professionals both validate and assess the aided listening experience in various ways as part of the fitting procedure and in follow-up assessments. The goal of the present study was to observe standard clinical practice and identify methods and actions currently used, and examine their potential for formalization and inclusion in guidelines, or replacement by existing formalized procedures. Material and methods: The relevant professionals receive a major part of their training through supervised internships, and it is anticipated that much of their knowledge is tacit and informal. The general methods for the study therefore comprise a combination of interviews with and observations of professionals during hearing-aid fitting and at two-month follow-up. Observations and contextual inquiries of the clinical practice were made in three public hearing clinics in Denmark including 17 professionals, which were either medical audiologists (ENT doctors), audiology assistants or professionals in audiologopedics. These are the main categories of professionals involved in hearing-aid fitting in public clinics in Denmark. Each professional participated between two and ten hours in the present study. Results: The results show that professionals assess outcome using methods, which are often individually and tacitly anchored covering 1) validation of basic hearing aid functionality, 2) patient awareness on gain with hearing aids, 3) access to knowledge on patient experiences through sound descriptions, 4) assessment of aided performance in real life and 5) non-auditory assessments. Conclusion: Some of the informal methods observed may be formalized as a part of a more patient-centered communication strategy – other need further examination or may be replaced by existing, already validated formal frameworks, or by test batteries under development. Acknowledgement: The collaboration within the BEAR project and funding by Innovation Fund Denmark and partners of the BEAR project (incl. Oticon, GN Resound and Widex) is sincerely appreciated.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } Background: Denmark has currently no formal requirements for testing and documenting the aided listening performance and outcome obtained with hearing aids rehabilitation. Yet most professionals both validate and assess the aided listening experience in various ways as part of the fitting procedure and in follow-up assessments. The goal of the present study was to observe standard clinical practice and identify methods and actions currently used, and examine their potential for formalization and inclusion in guidelines, or replacement by existing formalized procedures. Material and methods: The relevant professionals receive a major part of their training through supervised internships, and it is anticipated that much of their knowledge is tacit and informal. The general methods for the study therefore comprise a combination of interviews with and observations of professionals during hearing-aid fitting and at two-month follow-up. Observations and contextual inquiries of the clinical practice were made in three public hearing clinics in Denmark including 17 professionals, which were either medical audiologists (ENT doctors), audiology assistants or professionals in audiologopedics. These are the main categories of professionals involved in hearing-aid fitting in public clinics in Denmark. Each professional participated between two and ten hours in the present study. Results: The results show that professionals assess outcome using methods, which are often individually and tacitly anchored covering 1) validation of basic hearing aid functionality, 2) patient awareness on gain with hearing aids, 3) access to knowledge on patient experiences through sound descriptions, 4) assessment of aided performance in real life and 5) non-auditory assessments. Conclusion: Some of the informal methods observed may be formalized as a part of a more patient-centered communication strategy – other need further examination or may be replaced by existing, already validated formal frameworks, or by test batteries under development. Acknowledgement: The collaboration within the BEAR project and funding by Innovation Fund Denmark and partners of the BEAR project (incl. Oticon, GN Resound and Widex) is sincerely appreciated. |
Hammershøi, Dorte A study of better hearing rehabilitation in Denmark (the BEAR project) Conference Presentation at the 14th Congress of the European Federation of Audiology Societies (EFAS 2019), Lisbon, Portugal, 22-25 May 2019, (04079), European Federation of Audiology Societies 2019. @conference{EFAS2019DH, title = {A study of better hearing rehabilitation in Denmark (the BEAR project)}, author = {Dorte Hammershøi}, url = {https://fff0e2ea-6f01-41b9-b0dd-7dbdf3580dbb.filesusr.com/ugd/09d8d3_dc3fb64898554097a7427d3d03a1f290.pdf}, year = {2019}, date = {2019-05-22}, booktitle = {Presentation at the 14th Congress of the European Federation of Audiology Societies (EFAS 2019), Lisbon, Portugal, 22-25 May 2019}, number = {04079}, organization = {European Federation of Audiology Societies}, abstract = {Background: The overall vision of the project is to improve hearing rehabilitation through an evidence-based renewal of clinical practice. The structured approach comprise studies of the current practice in Denmark, considerations for new methods, experimental application and refinement of this, evaluation and implementation of the most promising renewals. Method: The reference for existing practice is based on data for almost 2,000 patients, which have been fitted with hearing aids during 2017-2018 in two of the participating clinics. The considerations for new profiling methods are based on the analysis of prior studies incl. more diverse diagnostics than used currently. New fitting strategies are preliminarily tested using hearing-aid simulations in laboratory settings, in parallel to test trials of new aided-performance tests and paradigms for assessing user experiences in the field. These studies are all on going and will be reported in more detail in accompanying presentations. The experimental application of the novel fitting strategies is currently being planned, and will include the experimental application of the prospective strategy in real hearing aids. The refinement of novel strategies includes studies of the clinical efficiency, socio-economic trade-offs, options of out-of-clinic application, and attention to populations with low benefits. The evaluation and implementation includes proposals for future standardization, and the collection of any additional reference data for this effort. Results: A clinical database for almost 2,000 patients has been established, which includes standard data supplemented with widely used questionnaires for the assessment of outcome. The clinical practice has been examined for tacit knowledge in validation and assessment of user outcomes. A proposal for four differing hearing profiles has been developed, and six different fitting strategies is examined for their potential. A test battery for aided listening performance has been developed. Acknowledgements: This work was supported by Innovation Fund Denmark Grand Solutions 5164-00011B (Better hEAring Rehabilitation project), Oticon, GN Resound, Widex and other partners (University of Southern Denmark, Aalborg University, the Technical University of Denmark, Force, and Aalborg, Odense and Copenhagen University Hospitals). The funding and collaboration of all partners is sincerely acknowledged.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } Background: The overall vision of the project is to improve hearing rehabilitation through an evidence-based renewal of clinical practice. The structured approach comprise studies of the current practice in Denmark, considerations for new methods, experimental application and refinement of this, evaluation and implementation of the most promising renewals. Method: The reference for existing practice is based on data for almost 2,000 patients, which have been fitted with hearing aids during 2017-2018 in two of the participating clinics. The considerations for new profiling methods are based on the analysis of prior studies incl. more diverse diagnostics than used currently. New fitting strategies are preliminarily tested using hearing-aid simulations in laboratory settings, in parallel to test trials of new aided-performance tests and paradigms for assessing user experiences in the field. These studies are all on going and will be reported in more detail in accompanying presentations. The experimental application of the novel fitting strategies is currently being planned, and will include the experimental application of the prospective strategy in real hearing aids. The refinement of novel strategies includes studies of the clinical efficiency, socio-economic trade-offs, options of out-of-clinic application, and attention to populations with low benefits. The evaluation and implementation includes proposals for future standardization, and the collection of any additional reference data for this effort. Results: A clinical database for almost 2,000 patients has been established, which includes standard data supplemented with widely used questionnaires for the assessment of outcome. The clinical practice has been examined for tacit knowledge in validation and assessment of user outcomes. A proposal for four differing hearing profiles has been developed, and six different fitting strategies is examined for their potential. A test battery for aided listening performance has been developed. Acknowledgements: This work was supported by Innovation Fund Denmark Grand Solutions 5164-00011B (Better hEAring Rehabilitation project), Oticon, GN Resound, Widex and other partners (University of Southern Denmark, Aalborg University, the Technical University of Denmark, Force, and Aalborg, Odense and Copenhagen University Hospitals). The funding and collaboration of all partners is sincerely acknowledged. |
Wolff, Anne; Schmidt, Jesper Hvass; Houmøller, Sabina Storbjerg; Narne, Vijay; Hougaard, Dan Dupont; Gaihede, Michael; Loquet, Gérard; Hammershøi, Dorte Dansk Selskab for Otorhinolaryngologi, Hoved- & Halskirurgi, årsmøde 25-26 april 2019, 2019. @conference{DSOHH2019, title = {Self-reported Health-related Quality of Life in a cohort of Danish adults with hearing impairment before and after hearing-aid rehabilitation}, author = {Anne Wolff and Jesper Hvass Schmidt and Sabina Storbjerg Houmøller and Vijay Narne and Dan Dupont Hougaard and Michael Gaihede and Gérard Loquet and Dorte Hammershøi}, url = {http://dsohh.dk/wp-content/uploads/2019/04/Program_%C3%A5rsm%C3%B8de2019-1.pdf}, year = {2019}, date = {2019-04-26}, booktitle = {Dansk Selskab for Otorhinolaryngologi, Hoved- & Halskirurgi, årsmøde 25-26 april 2019}, abstract = {Introduction: The 15-Dimension instrument (15D) is a standardized, self-administered, generic questionnaire that provides a profile (D1-15 score) and a single index score (D15-score) as a measure of health-related quality of life (HRQoL) on a scale with a range between zero and one. Moreover, this questionnaire includes a question related to hearing (D3). When completed before and after hearing aid (HA) treatment, this questionnaire assesses the potential benefits of HA treatment on HRQoL. Method: Prospective clinical trial with HA treatment as intervention. The data were collected by means of self-reported questionnaires (15D and a basic health-related questionnaire) before and two months following HA-fitting. The study population (n=1536) comprised of both first time HA users (n=1096) and experienced HA users (n=440) enrolled in the multicenter better hearing rehabilitation (BEAR) project. Results: HA treatment resulted in improved mean score of D3 for both new (∆D3: mean, SD (0.102; 0.19) and experienced (∆D3: mean, SD (0.083; 0.20) HA users following 2 months of HA use. Patients with both “moderate to severe” and “severe” hearing loss, defined by the GBD hearing impairment classification, experienced a significant improvement in D3. Discussion: The study supports that HA usage has a positive effect on HRQoL and that HA treatment results in improved HRQoL when looking at the hearing dimension. Degree of hearing loss alone does not explain the positive effect observed. Therefore, additional parameters need to be studied in order to explain which factors are essential for patients with HL to be able to achieve an improvement of HRQoL following HA-fitting.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } Introduction: The 15-Dimension instrument (15D) is a standardized, self-administered, generic questionnaire that provides a profile (D1-15 score) and a single index score (D15-score) as a measure of health-related quality of life (HRQoL) on a scale with a range between zero and one. Moreover, this questionnaire includes a question related to hearing (D3). When completed before and after hearing aid (HA) treatment, this questionnaire assesses the potential benefits of HA treatment on HRQoL. Method: Prospective clinical trial with HA treatment as intervention. The data were collected by means of self-reported questionnaires (15D and a basic health-related questionnaire) before and two months following HA-fitting. The study population (n=1536) comprised of both first time HA users (n=1096) and experienced HA users (n=440) enrolled in the multicenter better hearing rehabilitation (BEAR) project. Results: HA treatment resulted in improved mean score of D3 for both new (∆D3: mean, SD (0.102; 0.19) and experienced (∆D3: mean, SD (0.083; 0.20) HA users following 2 months of HA use. Patients with both “moderate to severe” and “severe” hearing loss, defined by the GBD hearing impairment classification, experienced a significant improvement in D3. Discussion: The study supports that HA usage has a positive effect on HRQoL and that HA treatment results in improved HRQoL when looking at the hearing dimension. Degree of hearing loss alone does not explain the positive effect observed. Therefore, additional parameters need to be studied in order to explain which factors are essential for patients with HL to be able to achieve an improvement of HRQoL following HA-fitting. |
Wolff, Anne; Houmøller, Sabina Storbjerg; Loquet, Gérard; Schmidt, Jesper Hvass; Narne, Vijay; Gaihede, Michael; Hougaard, Dan Dupont; Hammershøi, Dorte Annual midwinter meeting in the Association for Research in Otolaryngology (Book of Abstracts), 42 (PD 163), 2019. @conference{ARO2019, title = {The Better Hearing Rehabilitation (BEAR) Study in Denmark. Study Population Characteristics and Perspectives}, author = {Anne Wolff and Sabina Storbjerg Houmøller and Gérard Loquet and Jesper Hvass Schmidt and Vijay Narne and Michael Gaihede and Dan Dupont Hougaard and Dorte Hammershøi}, url = {https://cdn.ymaws.com/www.aro.org/resource/resmgr/mwm2019/2019_aro_mwm_abstracts_final.pdf}, year = {2019}, date = {2019-02-13}, booktitle = {Annual midwinter meeting in the Association for Research in Otolaryngology (Book of Abstracts)}, volume = {42}, number = {PD 163}, pages = {719}, abstract = {A recent report from WHO noted that 360 million people in the world have hearing loss. Despite efforts to provide hearing aids (HA) to people in need, hearing loss remains an unmet need. In Denmark, for example, 20% of HA owners do not use their HA regularly which results in wasted clinical resources and a lack of rehabilitation. To improve the treatment, we propose to revise diagnostic techniques and HA fitting practices based on individual hearing profiles, set of expectations, and lifestyles. To achieve this, a cooperative project “BEAR” has been launched between three national universities, three hospitals, and the HA industry in Denmark. This resulted in the building of a database of over 30,000 patient records, collected by two audiologic departments (Aalborg and Odense, Denmark), from January 2017 until April 2018 from 1,963 hearing impaired patients. Data obtained describe procedures which are currently used in clinical audiology across Denmark and allow to explore which measures are available for each patient and what type of HA fitting they have received. Records consisted of audiometric data (air and bone conduction, uncomfortable levels, speech reception thresholds speech discrimination scores, stapedius reflex and tympanometry, Tinnitus Handicap Inventory), quality of life evaluation using questionnaires (health related quality of life [15-D], Health Related Questionnaires, Charlson Comorbidity Index), HA outcome measures using questionnaires (Speech, Spatial and Qualities of Hearing scale [SSQ-12], International Outcome Inventory for Hearing Aids [IOI-HA]) and HA fitting data (HA types, log data, fitting rationale and real-ear measurements). The database has a gender ratio of 126 males for 100 females, a mean age at 67 years (range from 19 to 100 years) and a mean hearing threshold in the better hearing ear of 40 dB HL (four frequencies average). 71.9 percent of the patients are first time HA users, as against 28.1 percent for patients with previous HA experience. Preliminary analyses show on average significant improvement in hearing abilities with HA (from IOI-HA and SSQ-12). However, substantial number of participants (18%) did not derive enough benefit from HA. Further analysis will be directed towards finding the possible reasons and grouping the participants based on HA benefit, demographic and audiological data. This will enable us to identify the areas, among contemporary standard examinations and hearing fitting strategies, which would be relevant to explore, change or further develop to provide a better HA fitting and thereby a greater user satisfaction.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } A recent report from WHO noted that 360 million people in the world have hearing loss. Despite efforts to provide hearing aids (HA) to people in need, hearing loss remains an unmet need. In Denmark, for example, 20% of HA owners do not use their HA regularly which results in wasted clinical resources and a lack of rehabilitation. To improve the treatment, we propose to revise diagnostic techniques and HA fitting practices based on individual hearing profiles, set of expectations, and lifestyles. To achieve this, a cooperative project “BEAR” has been launched between three national universities, three hospitals, and the HA industry in Denmark. This resulted in the building of a database of over 30,000 patient records, collected by two audiologic departments (Aalborg and Odense, Denmark), from January 2017 until April 2018 from 1,963 hearing impaired patients. Data obtained describe procedures which are currently used in clinical audiology across Denmark and allow to explore which measures are available for each patient and what type of HA fitting they have received. Records consisted of audiometric data (air and bone conduction, uncomfortable levels, speech reception thresholds speech discrimination scores, stapedius reflex and tympanometry, Tinnitus Handicap Inventory), quality of life evaluation using questionnaires (health related quality of life [15-D], Health Related Questionnaires, Charlson Comorbidity Index), HA outcome measures using questionnaires (Speech, Spatial and Qualities of Hearing scale [SSQ-12], International Outcome Inventory for Hearing Aids [IOI-HA]) and HA fitting data (HA types, log data, fitting rationale and real-ear measurements). The database has a gender ratio of 126 males for 100 females, a mean age at 67 years (range from 19 to 100 years) and a mean hearing threshold in the better hearing ear of 40 dB HL (four frequencies average). 71.9 percent of the patients are first time HA users, as against 28.1 percent for patients with previous HA experience. Preliminary analyses show on average significant improvement in hearing abilities with HA (from IOI-HA and SSQ-12). However, substantial number of participants (18%) did not derive enough benefit from HA. Further analysis will be directed towards finding the possible reasons and grouping the participants based on HA benefit, demographic and audiological data. This will enable us to identify the areas, among contemporary standard examinations and hearing fitting strategies, which would be relevant to explore, change or further develop to provide a better HA fitting and thereby a greater user satisfaction. |
2018 |
Hammershøi, Dorte Update på BEAR projektet Conference Invited presentation at Danish Technical Audiological Society's annual meeting, 5-6 Oct 2018. Hotel Vejlefjord, Stouby, Denmark, 2018. @conference{DTAS2018a, title = {Update på BEAR projektet}, author = {Dorte Hammershøi}, url = {http://www.dtas.dk/DTAS_Program_2018.pdf}, year = {2018}, date = {2018-10-06}, booktitle = {Invited presentation at Danish Technical Audiological Society's annual meeting, 5-6 Oct 2018. Hotel Vejlefjord, Stouby, Denmark}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Wolff, Anne; Schmidt, Jesper Hvass; Houmøller, Sabina Storbjerg; Hougaard, Dan Dupont; Gaihede, Michael; Godballe, Christian; Hammershøi, Dorte The Better Hearing Rehabilitation (BEAR) study in Denmark. Population characteristics of the hearing aid user and benefits of hearing aid treatment in the current program of hearing rehabilitation Conference Presentation at the Nordic Audiological Society, Harpa, Iceland, 6-8 June 2018., 2018. @conference{NAS2018, title = {The Better Hearing Rehabilitation (BEAR) study in Denmark. Population characteristics of the hearing aid user and benefits of hearing aid treatment in the current program of hearing rehabilitation}, author = {Anne Wolff and Jesper Hvass Schmidt and Sabina Storbjerg Houmøller and Dan Dupont Hougaard and Michael Gaihede and Christian Godballe and Dorte Hammershøi}, year = {2018}, date = {2018-06-06}, booktitle = {Presentation at the Nordic Audiological Society, Harpa, Iceland, 6-8 June 2018.}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
2017 |
Houmøller, Sabina Storbjerg; Wolff, Anne; Hougaard, Dan Dupont; Hammershøi, Dorte; Godballe, Christian; Schmidt, Jesper Hvass BEAR: A status on population characteristics of hearing-aid users obtained from the database Conference ISAAR 2017 Adaptive Processes in Hearing, (P.20), 2017. @conference{SabinaISAAR2017, title = {BEAR: A status on population characteristics of hearing-aid users obtained from the database}, author = {Sabina Storbjerg Houmøller and Anne Wolff and Dan Dupont Hougaard and Dorte Hammershøi and Christian Godballe and Jesper Hvass Schmidt}, year = {2017}, date = {2017-08-23}, booktitle = {ISAAR 2017 Adaptive Processes in Hearing}, number = {P.20}, pages = {126}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Wolff, Anne; Houmøller, Sabina Storbjerg; Gaihede, Michael; Hougaard, Dan Dupont; Schmidt, Jesper Hvass; Hammershøi, Dorte Predictive factors for successful hearing aid treatment with special focus on health related quality of life and asymmetric hearing Conference XIV Årsmøde i Dansk Selskab for Otorhinolaryngologi, Hoved- & Halskirurgi, Nyborg, Danmark, 2017. @conference{DSOHH2017, title = {Predictive factors for successful hearing aid treatment with special focus on health related quality of life and asymmetric hearing}, author = {Anne Wolff and Sabina Storbjerg Houmøller and Michael Gaihede and Dan Dupont Hougaard and Jesper Hvass Schmidt and Dorte Hammershøi}, year = {2017}, date = {2017-04-20}, booktitle = {XIV Årsmøde i Dansk Selskab for Otorhinolaryngologi, Hoved- & Halskirurgi, Nyborg, Danmark}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Hammershøi, Dorte Høreapparater på en helt ny måde Conference IDA Universe temadag, København, Danmark, 2017. @conference{IDAUcph2017, title = {Høreapparater på en helt ny måde}, author = {Dorte Hammershøi }, year = {2017}, date = {2017-04-19}, booktitle = {IDA Universe temadag, København, Danmark}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Wolff, Anne; Houmøller, Sabina Storbjerg; Gaihede, Michael; Hougaard, Dan Dupont; Hammershøi, Dorte National Better hEAring Rehabilitation (BEAR) project: A status on the database with special focus on patients’ motivation on hearing aid treatment Conference ISAAR 2017 Adaptive Processes in Hearing, (P.55), 2017. @conference{AnneISAAR2017, title = {National Better hEAring Rehabilitation (BEAR) project: A status on the database with special focus on patients’ motivation on hearing aid treatment}, author = {Anne Wolff and Sabina Storbjerg Houmøller and Michael Gaihede and Dan Dupont Hougaard and Dorte Hammershøi}, year = {2017}, date = {2017-01-01}, booktitle = {ISAAR 2017 Adaptive Processes in Hearing}, number = {P.55}, pages = {196}, keywords = {}, pubstate = {published}, tppubtype = {conference} } |
Universitetshospitaler
Odense Universitetshospital
Rikke Schnack-Petersen
rikke.schnack-petersen@rsyd.dk
Aalborg Universitetshospital
Michael Gaihede
mlg@rn.dk
Københavns Universitetshospital
Jesper Borchorst Yde
jesper.borchorst.yde.01@regionh.dk
Universiteter
Syddansk Universitet
Jesper Hvass Schmidt
jesper.schmidt@rsyd.dk
Aalborg Universitet
Dorte Hammershøi
dh@es.aau.dk
Danmarks Tekniske Universitet
Torsten Dau
tdau@dtu.dk
GTS
Industri
Oticon
Karen Wibling Solgård
kaws@oticon.dk
GN Resound
Nikolai Bisgaard
nbisgaard@gnresound.com
WSAudiology
Filip Marchman Rønne
filip.roenne@wsa.com
