Asthma and eye diseases in middle-aged and elderly Chinese: A comprehensive analysis of CHARLS data

Abstract

With China's aging population, the incidence of eye diseases is increasing, leading to urgent concerns about visual impairment and blindness. The cause-and-effect relationship between asthma and eye diseases in the Chinese population remains unclear. This study aimed to investigate the link between asthma and eye-related diseases, including cataracts and glaucoma, among Chinese adults. This study utilized data from the 4th wave of the China Health and Retirement Longitudinal Survey conducted in 2018, involving 19,816 Chinese participants. We first described baseline characteristics, then constructed 5 logistic regression models to study the relationship between asthma and eye diseases in the Chinese context. Additionally, subgroup analyses were performed with selected variables. Across 5 models adjusting for covariates, we found that asthma was significantly associated with cataracts (odds ratios [95% confidence intervals]: 1.36 [1.01-1.79], P=.034) and glaucoma (odds ratios [95% confidence intervals]: 1.92 [1.46-2.49], P