The CHARLS study collected sociodemographic and health-related data using a structured questionnaire, including covariates such as age, sex, educational attainment, marital status, residence, smoking and drinking status, visual and hearing impairment, self-reported general health status, self-reported life satisfaction, daytime napping habits, depression, and chronic disease condition.

Authors

• Person: Not available Organization: JMIR Human Factors
  Associations Between Sleep Duration and Cognitive Function ...

Sources

• Associations Between Sleep Duration and Cognitive Function ... humanfactors.jmir.org JMIR Human Factors via serper

Referenced by nodes (1)

• China Health and Retirement Longitudinal Study concept