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      Cohort profile: Netherlands Longitudinal Study on Hearing (NL-SH)

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          Abstract

          Purpose

          The Netherlands Longitudinal Study on Hearing (NL-SH) was set up to examine associations of hearing ability with psychosocial, work and health outcomes in working age adults.

          Participants

          Inclusion started in 2006 and is ongoing. Currently the sample comprises 2800 adults with normal and impaired hearing, aged 18–70 years at inclusion. Five-year follow-up started in 2011, 10-year follow-up in 2016 and 15-year follow-up in 2021. All measurements are web-based. Participants perform a speech-in-noise recognition test to measure hearing ability and fill out questionnaires about their hearing status, hearing aid use, self-reported hearing disability and coping, work status and work-related outcomes (work performance, need for recovery), physical and psychosocial health (depression, anxiety, distress, somatisation, loneliness), healthcare usage, lifestyle (smoking, alcohol), and technology use.

          Findings to date

          The NL-SH has shown the vast implications of reduced hearing ability for the quality of life and health of working-age adults. A selection of results published in 27 papers is presented. Age-related deterioration of hearing ability accelerates after the age of 50 years. Having a history of smoking is associated with a faster decline in hearing ability, but this relationship is not found for other cardiovascular risk factors. Poorer hearing ability is associated with increased distress, somatisation, depression and loneliness. Adults with impaired hearing ability are more likely to be unemployed or unfit for work, and need more time to recuperate from work effort.

          Future plans

          Participant data will be linked to a national database to enable research on the association between hearing ability and mortality. Linking to environmental exposure data will facilitate insight in relations between environmental factors, hearing ability and psychosocial outcomes. The unique breadth of the NL-SH data will also allow for further research on other functional problems, for instance, hearing ability and fall risk.

          Trial registration number

          NL12015.029.06.

          Related collections

          Most cited references65

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          EuroQol--a new facility for the measurement of health-related quality of life.

          (1990)
          In the course of developing a standardised, non-disease-specific instrument for describing and valuing health states (based on the items in Table 1), the EuroQol Group (whose members are listed in the Appendix) conducted postal surveys in England, The Netherlands and Sweden which indicate a striking similarity in the relative valuations attached to 14 different health states. The data were collected using a visual analogue scale similar to a thermometer. The EuroQol instrument is intended to complement other quality-of-life measures and to facilitate the collection of a common data set for reference purposes. Others interested in participating in the extension of this work are invited to contact the EuroQol Group.
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            The Job Content Questionnaire (JCQ): an instrument for internationally comparative assessments of psychosocial job characteristics.

            Part I discusses the Job Content Questionnaire (JCQ), designed to measure scales assessing psychological demands, decision latitude, social support, physical demands, and job insecurity. Part II describes the reliability of the JCQ scales in a cross-national context using 10,288 men and 6,313 women from 6 studies conducted in 4 countries. Substantial similarity in means, standard deviations, and correlations among the scales, and in correlations between scales and demographic variables, is found for both men and women in all studies. Reliability is good for most scales. Results suggest that psychological job characteristics are more similar across national boundaries than across occupations.
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              Hearing loss prevalence and years lived with disability, 1990–2019: findings from the Global Burden of Disease Study 2019

              Summary Background Hearing loss affects access to spoken language, which can affect cognition and development, and can negatively affect social wellbeing. We present updated estimates from the Global Burden of Disease (GBD) study on the prevalence of hearing loss in 2019, as well as the condition's associated disability. Methods We did systematic reviews of population-representative surveys on hearing loss prevalence from 1990 to 2019. We fitted nested meta-regression models for severity-specific prevalence, accounting for hearing aid coverage, cause, and the presence of tinnitus. We also forecasted the prevalence of hearing loss until 2050. Findings An estimated 1·57 billion (95% uncertainty interval 1·51–1·64) people globally had hearing loss in 2019, accounting for one in five people (20·3% [19·5–21·1]). Of these, 403·3 million (357·3–449·5) people had hearing loss that was moderate or higher in severity after adjusting for hearing aid use, and 430·4 million (381·7–479·6) without adjustment. The largest number of people with moderate-to-complete hearing loss resided in the Western Pacific region (127·1 million people [112·3–142·6]). Of all people with a hearing impairment, 62·1% (60·2–63·9) were older than 50 years. The Healthcare Access and Quality (HAQ) Index explained 65·8% of the variation in national age-standardised rates of years lived with disability, because countries with a low HAQ Index had higher rates of years lived with disability. By 2050, a projected 2·45 billion (2·35–2·56) people will have hearing loss, a 56·1% (47·3–65·2) increase from 2019, despite stable age-standardised prevalence. Interpretation As populations age, the number of people with hearing loss will increase. Interventions such as childhood screening, hearing aids, effective management of otitis media and meningitis, and cochlear implants have the potential to ameliorate this burden. Because the burden of moderate-to-complete hearing loss is concentrated in countries with low health-care quality and access, stronger health-care provision mechanisms are needed to reduce the burden of unaddressed hearing loss in these settings. Funding Bill & Melinda Gates Foundation and WHO.
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                Author and article information

                Journal
                BMJ Open
                BMJ Open
                bmjopen
                bmjopen
                BMJ Open
                BMJ Publishing Group (BMA House, Tavistock Square, London, WC1H 9JR )
                2044-6055
                2023
                17 April 2023
                : 13
                : 4
                : e070180
                Affiliations
                [1 ]departmentOtolaryngology-Head and Neck Surgery , Ringgold_1209Amsterdam UMC location Vrije Universiteit Amsterdam , Amsterdam, The Netherlands
                [2 ]departmentQuality of Care , Ringgold_1229Amsterdam Public Health Research Institute , Amsterdam, The Netherlands
                [3 ]departmentResearch & Development , Sonova AG , Stäfa, Switzerland
                [4 ]departmentPublic and Occupational health , Ringgold_1209Amsterdam UMC location Vrije Universiteit Amsterdam , Amsterdam, The Netherlands
                [5 ]departmentEpidemiology and Data Science , Ringgold_1209Amsterdam UMC Location Vrije Universiteit Amsterdam , Amsterdam, The Netherlands
                [6 ]departmentOtolaryngology-Head and Neck Surgery , Ringgold_1229Amsterdam UMC location University of Amsterdam , Amsterdam, The Netherlands
                Author notes
                [Correspondence to ] Dr Marieke F van Wier; m.vanwier1@ 123456amsterdamumc.nl
                Author information
                http://orcid.org/0000-0002-6464-1291
                http://orcid.org/0000-0002-5286-6258
                http://orcid.org/0000-0001-6828-9056
                http://orcid.org/0000-0003-0533-1012
                http://orcid.org/0000-0001-9448-1826
                http://orcid.org/0000-0003-1617-1253
                http://orcid.org/0000-0002-0451-8179
                Article
                bmjopen-2022-070180
                10.1136/bmjopen-2022-070180
                10111885
                37068904
                90767e80-9d3b-4d36-a21d-009917b89f7f
                © Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

                This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See:  http://creativecommons.org/licenses/by-nc/4.0/.

                History
                : 21 November 2022
                : 04 April 2023
                Funding
                Funded by: Sonova AG, Switzerland;
                Award ID: N/A
                Funded by: Amsterdam Public Health research institute, Quality of Care, The Netherlands;
                Award ID: N/A
                Funded by: Heinsius-Houbolt Foundation, the Netherlands;
                Award ID: N/A
                Funded by: EMGO+ Institute for Health and Care Research, The Netherlands;
                Award ID: N/A
                Categories
                Ear, Nose and Throat/Otolaryngology
                1506
                1690
                Cohort profile
                Custom metadata
                unlocked

                Medicine
                mental health,audiology,occupational & industrial medicine
                Medicine
                mental health, audiology, occupational & industrial medicine

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