Liu, Yuanjiao
Zhu, Jinghan
Yu, Jiazhou
Zhang, Xuhui
Article History
Received: 18 October 2023
Accepted: 11 January 2024
First Online: 20 February 2024
Declarations
:
: Ethical approval for the study was granted by the Ethical Review Committee of Peking University and was conducted by the National School for Development (China Centre for Economic Research) at Peking University, following the Helsinki guidelines. The Institutional Review Board (IRB) approval number for the main household survey, including anthropometrics, was IRB00001052-11015, and the IRB approval number for biomarker collection was IRB00001052-11014 [CitationRef removed]. Informed consent was obtained from all participants involved in the CHARLS, and all participants signed written informed consent forms. All methods were performed by the relevant guidelines and regulations.
: Not applicable.
: The authors declare no competing interests.