Funding for this research was provided by:
Zhejiang University Global Partnership Fund
Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province
Received: 23 August 2022
Accepted: 21 November 2022
First Online: 16 January 2023
: The HRS and HRS-VBS were approved by the Health Sciences and Behavioral Sciences institutional review board at the University of Michigan (HUM00061128). The CHARLS was approved by the Ethics Committee of Pecking University (00001052-11, 014).
: Not applicable.
: The authors declare that they have no competing interests.