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Association between the severity of hearing loss and the risk of dementia within the 2010–2017 national insurance service survey in South Korea

Hearing loss and dementia are highly prevalent neurologic conditions in older adults that can considerably impact the quality of life and create social and familial burdens. To investigate the impact of hearing loss on the risk of developing dementia in a nationwide long-term follow-up study using d...

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Autores principales: Chang, Young-Soo, Rah, Yoon Chan, Lee, Min Kyu, Park, Seongbin, Kim, Bongseong, Han, Kyungdo, Choi, June
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7693323/
https://www.ncbi.nlm.nih.gov/pubmed/33244106
http://dx.doi.org/10.1038/s41598-020-77752-1
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author Chang, Young-Soo
Rah, Yoon Chan
Lee, Min Kyu
Park, Seongbin
Kim, Bongseong
Han, Kyungdo
Choi, June
author_facet Chang, Young-Soo
Rah, Yoon Chan
Lee, Min Kyu
Park, Seongbin
Kim, Bongseong
Han, Kyungdo
Choi, June
author_sort Chang, Young-Soo
collection PubMed
description Hearing loss and dementia are highly prevalent neurologic conditions in older adults that can considerably impact the quality of life and create social and familial burdens. To investigate the impact of hearing loss on the risk of developing dementia in a nationwide long-term follow-up study using data obtained from the South Korean National Health Information Database. Retrospective medical data for patients of all ages were extracted from the database between January 2010 and December 2017. According to the national disability registry, the degree of severe-profound hearing loss is classified into six grades. We categorized hearing loss into three groups based on the disability registry severity: (1) severe hearing disability (HD), defined as 1st to 3rd grade disabling hearing loss; (2) non-severe HD, 4th and 5th grade disabling hearing loss; and (3) ipsilateral HD, 6th grade disabling hearing loss. After adjusting for potential confounding variables, the hazard ratio (HR) for all dementia types was 1.336 (95% CI 1.306–1.367) in the severe HD group, 1.312 (95% CI 1.286–1.338) in the non-severe HD group, and 1.257 (95% CI 1.217–1.299) in the ipsilateral HD group. On assessing by the age group, the risk of all dementia types in patients younger than 65 years was as follows: HR 1.933 (95% CI 1.779–2.101), 1.880 (95% CI 1.732–2.041), and 1.601 (95% CI 1.435–1.787) in the severe, non-severe, and ipsilateral HD groups, respectively. This study demonstrates that the impact of hearing loss on dementia incidence is severity-dependent, and the risk increases in patients younger than 65 years of age.
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spelling pubmed-76933232020-11-30 Association between the severity of hearing loss and the risk of dementia within the 2010–2017 national insurance service survey in South Korea Chang, Young-Soo Rah, Yoon Chan Lee, Min Kyu Park, Seongbin Kim, Bongseong Han, Kyungdo Choi, June Sci Rep Article Hearing loss and dementia are highly prevalent neurologic conditions in older adults that can considerably impact the quality of life and create social and familial burdens. To investigate the impact of hearing loss on the risk of developing dementia in a nationwide long-term follow-up study using data obtained from the South Korean National Health Information Database. Retrospective medical data for patients of all ages were extracted from the database between January 2010 and December 2017. According to the national disability registry, the degree of severe-profound hearing loss is classified into six grades. We categorized hearing loss into three groups based on the disability registry severity: (1) severe hearing disability (HD), defined as 1st to 3rd grade disabling hearing loss; (2) non-severe HD, 4th and 5th grade disabling hearing loss; and (3) ipsilateral HD, 6th grade disabling hearing loss. After adjusting for potential confounding variables, the hazard ratio (HR) for all dementia types was 1.336 (95% CI 1.306–1.367) in the severe HD group, 1.312 (95% CI 1.286–1.338) in the non-severe HD group, and 1.257 (95% CI 1.217–1.299) in the ipsilateral HD group. On assessing by the age group, the risk of all dementia types in patients younger than 65 years was as follows: HR 1.933 (95% CI 1.779–2.101), 1.880 (95% CI 1.732–2.041), and 1.601 (95% CI 1.435–1.787) in the severe, non-severe, and ipsilateral HD groups, respectively. This study demonstrates that the impact of hearing loss on dementia incidence is severity-dependent, and the risk increases in patients younger than 65 years of age. Nature Publishing Group UK 2020-11-26 /pmc/articles/PMC7693323/ /pubmed/33244106 http://dx.doi.org/10.1038/s41598-020-77752-1 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Chang, Young-Soo
Rah, Yoon Chan
Lee, Min Kyu
Park, Seongbin
Kim, Bongseong
Han, Kyungdo
Choi, June
Association between the severity of hearing loss and the risk of dementia within the 2010–2017 national insurance service survey in South Korea
title Association between the severity of hearing loss and the risk of dementia within the 2010–2017 national insurance service survey in South Korea
title_full Association between the severity of hearing loss and the risk of dementia within the 2010–2017 national insurance service survey in South Korea
title_fullStr Association between the severity of hearing loss and the risk of dementia within the 2010–2017 national insurance service survey in South Korea
title_full_unstemmed Association between the severity of hearing loss and the risk of dementia within the 2010–2017 national insurance service survey in South Korea
title_short Association between the severity of hearing loss and the risk of dementia within the 2010–2017 national insurance service survey in South Korea
title_sort association between the severity of hearing loss and the risk of dementia within the 2010–2017 national insurance service survey in south korea
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7693323/
https://www.ncbi.nlm.nih.gov/pubmed/33244106
http://dx.doi.org/10.1038/s41598-020-77752-1
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