Study population and design
This study utilized data from two nationally representative large-scale cohorts: the China Health and Retirement Longitudinal Study (CHARLS) [23] and the Chinese Longitudinal Healthy Longevity Survey (CLHLS) [24]….
This study utilized data from two nationally representative large-scale cohorts: the China Health and Retirement Longitudinal Study (CHARLS) [23] and the Chinese Longitudinal Healthy Longevity Survey (CLHLS) [24]….