Funding for this research was provided by:
National Natural Science Foundation of China (82411540241)
Science and Technology Project of Xiamen Medical College (K2023-09. 2024)
Fujian Province Science and Technology Program Project (2024048)
Article History
Received: 20 February 2026
Accepted: 7 April 2026
First Online: 26 April 2026
Declarations
:
: This study used publicly available data from the China Health and Retirement Longitudinal Study (CHARLS). The original CHARLS study was approved by the Biomedical Ethics Review Committee of Peking University (IRB00001052-11015). All participants provided written informed consent. The present analysis of de-identified data did not require additional ethical approval.
: Not applicable.
: The authors declare no competing interests.