Liu, Shenglong
Wan, Yuanyuan
Zhang, Xiaoming
Funding for this research was provided by:
National Natural Science Foundation of China (71991475, 72073078)
Tsinghua University Initiative Scientific Research Program (2021THZWYY03)
SSHRC Insight Grant (435190500)
Article History
Accepted: 25 August 2023
First Online: 1 November 2023
Declarations
:
: Author Shenglong Liu declares that he/she has no conflict of interest. Author Yuanyuan Wan declares that he/she has no conflict of interest. Author Xiaoming Zhang declares that he/she has no conflict of interest.
: As a secondary analysis of the data provided by 1% population survey in 2005 and China Health and Retirement Longitudinal Study, ethical approval was not required for this study.
: Informed consent was obtained from all individual participants involved in the survey.