Liao, Hui
Li, Sangsang
Han, Dan
Zhang, Mei
Zhao, Jie
Wu, Yunyi
Ma, Ying
Yan, Chaoyang
Wang, Jing
Funding for this research was provided by:
National Natural Science Foundation of China (72074086)
Fundamental Research Funds for the Central Universities (2022WKZDJC009)
Article History
Received: 24 June 2022
Accepted: 30 May 2023
First Online: 23 June 2023
Declarations
:
: All participants joined CHARLS voluntarily and gave informed written consent before they were interviewed. The CHARLS study data are publicly available and open to researchers worldwide, and ethics approval for data collection in CHARLS was obtained at the Biomedical Ethics Review Committee of Peking University (IRB00001052–11015). All methods in this study were performed in accordance with the guidelines of the Declaration of Helsinki.
: Not applicable.
: The authors declare no competing interests.