Funding for this research was provided by:
The 2023 PLA General Logistics Department Health Care Special Project (23BJZ45)
Article History
Received: 9 July 2025
Accepted: 22 August 2025
First Online: 2 September 2025
Declarations
:
: The CHARLS was conducted in compliance with the Declaration of Helsinki and approved by the Peking University Institutional Review Board (IRB00001052-11015). All participants provided written informed consent prior to enrollment.
: The authors declare no competing interests.