Visual impairment increases the risk of dementia, especially in young males in a 12-year longitudinal follow-up study of a national cohort.

ABSTRACT: We investigated the effect of visual impairment (VI) on dementia development in a national cohort. In this 12-year nationwide population-based retrospective cohort study, national data were collected from National Health Insurance Cooperation of South Korea from 2002 to 2017, comprising 799,074 subjects selected from the dementia-free cohort representative of the Korean population. Crude hazard ratios (HRs) as well as age- and sex-adjusted HRs and confidence intervals (CIs) for the development of dementia were estimated using multivariable Cox regression models. VI significantly increased the risk of dementia with a HR of 2.726 (95% CI 2.251-3.300, p < 0.0001) after adjusting for age, sex, and interaction between age, sex, and VI. HR of interaction between VI and age for dementia was 0.539

SUBMITTER: Lee GI 

PROVIDER: S-EPMC8167134 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature