Hu, Jingyang
Zheng, Xinyu
Shi, Guangduoji
Guo, Lan
Article History
Received: 1 December 2021
Accepted: 18 July 2022
First Online: 12 August 2022
Declarations
:
: All methods were performed in accordance with the Declaration of Helsinki. Written informed consent was obtained from all participants. The CHARLS study was approved by the Biomedical Ethics Review Committee of Peking University (IRB00001052-11015), and ethics approval for the use of CHARLS data was obtained from the University of Newcastle Human Research Ethics Committee. This study was conducted following the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) reporting guideline.
: Not applicable.
: The authors declare that they have no competing interests.