Pan, Liang
Xu, Xuedong
Zhang, Min
Sun, Chiping
Xu, Wuping
Article History
Received: 23 May 2025
Accepted: 15 August 2025
First Online: 27 August 2025
Declarations
:
: The methodologies used were approved by the Ethics Review Board of the National Center for Health Statistics, ensuring adherence to the standards set forth in the Declaration of Helsinki. Furthermore, informed consent was obtained from all research participants.
: Not applicable.
: The authors declare no competing interests.