Funding for this research was provided by:
National Natural Science Foundation of China (81872638)
Disciplinary Construction Project from School of Dentistry in Anhui Medical University (2021kqxKFY04)
Scientific Research Projects of Anhui Medical University (2020xkj145)
Article History
Received: 18 April 2022
Accepted: 13 November 2022
First Online: 25 November 2022
Declarations
:
: This paper used data from China Health and Retirement Longitudinal Study (CHARLS). Ethical approval for all the CHARLS waves was granted from the Institutional Review Board at Peking University. The IRB approval number for the main household survey, including anthropometrics, is IRB00001052-11015; the IRB approval number for biomarker collection, was IRB00001052-11014. All participants signed the informed consent at the time of participation.
: Not applicable.
: The authors declare that they have no competing interests.