Li, Zhong
Ding, Ziqin
Zhao, Panpan
Funding for this research was provided by:
the Philosophy and Social Science Project for the University by Jiangsu Education Department (2022SJYB0299, 2022SJYB0299)
National Natural Science Foundation of China (71874086)
Article History
Received: 9 December 2022
Accepted: 15 June 2023
First Online: 30 June 2023
Declarations
:
: All methods were carried out in accordance with relevant guidelines and regulations, including the Helsinki Declaration. This CLHLS study was approved by the institutional review board of Peking University and Duke University (IRB00001052-13074), and each wave was independent, with different participants recruited. Written/oral informal consent was obtained from the respondents or the next of kin in the baseline and follow-up surveys. The Institutional Review Board of Nanjing Medical University considered the analysis of public and anonymous data to be exempt.
: Not applicable.
: The authors declare no competing interests.