Duan, Yanran
Jiang, Shuai
Yin, Zhao
Wang, Sufan
Gao, Jinghong
Yang, Mengyu
Chen, Changying
Fu, Hang
Wang, Chengzeng
Funding for this research was provided by:
the Key R&D and promotion special project of Henan Province
Article History
Received: 11 January 2023
Accepted: 9 July 2023
First Online: 22 July 2023
Declarations
:
: 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. Participation was voluntary. A written informed consent was obtained from all the participants before entering the study otherwise they were excluded.
: Not applicable.
: The authors declare that they have no competing interests.