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. 2022 Jul 26;22(1):620.
doi: 10.1186/s12877-022-03311-0.

Hearing loss and depressive symptoms in older Chinese: whether social isolation plays a role

Hao Huang  1 , Jiao Wang  1 , Chao Qiang Jiang  2 , Feng Zhu  2 , Ya Li Jin  2 , Tong Zhu  2 , Wei Sen Zhang  3 , Lin Xu  4   5
Affiliations

Hearing loss and depressive symptoms in older Chinese: whether social isolation plays a role

Hao Huang et al. BMC Geriatr. .

Abstract

Background: Existing evidence links hearing loss to depressive symptoms, with the extent of association and underlying mechanisms remaining inconclusive. We conducted a cross-sectional study to examine the association of hearing loss with depressive symptoms and explored whether social isolation mediated the association.

Methods: Eight thousand nine hundred sixty-two participants from Guangzhou Biobank Cohort Study were included. Data on self-reported hearing status, the 15-item Geriatric Depression Scale (GDS-15), social isolation and potential confounders were collected by face-to-face interview.

Results: The mean (standard deviation) age of participants was 60.2 (7.8) years. The prevalence of poor and fair hearing was 6.8% and 60.8%, respectively. After adjusting for age, sex, household income, education, occupation, smoking, alcohol use, self-rated health, comorbidities, compared with participants who had normal hearing, those with poor hearing (β = 0.74, 95% confidence interval (CI) 0.54, 0.94) and fair hearing (β = 0.59, 95% CI 0.48, 0.69) had higher scores of GDS-15. After similar adjustment, those with poor hearing (odds ratio (OR) = 2.13, 95% CI 1.65, 2.74) or fair hearing (OR = 1.68, 95% CI 1.43, 1.99) also showed higher odds of depressive symptoms. The association of poor and fair hearing with depressive symptoms attenuated slightly but not substantially after additionally adjusting for social isolation. In the mediation analysis, the adjusted proportion of the association mediated through social isolation was 9% (95% CI: 6%, 22%).

Conclusion: Poor hearing was associated with a higher risk of depressive symptoms, which was only partly mediated by social isolation. Further investigation of the underlying mechanisms is warranted.

Keywords: Depressive symptoms; Hearing loss; Social isolation.

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Conflict of interest statement

The authors declare that they have no competing interests.

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