Hu, Nan
Qin, Jian
Dong, Hui
Wang, Deng-Chao
Yu, Miao
Article History
Received: 18 October 2024
Accepted: 27 August 2025
First Online: 6 October 2025
Declarations
:
: This research, which involved human participants, was reviewed and sanctioned by the Institutional Review Board of the CDC’s National Center for Health Statistics. Participants provided written informed consent. All procedures adhered to the principles outlined in the Helsinki Declaration. As this study involved secondary data analysis, additional ethics approval was not required.
: Not applicable.
: The authors declare no competing interests.