Zhou, Xinyun
Xing, Dianguo
Wang, Xinyue
Liu, Hua
Chen, Ying
An, Yunyi
Zhang, Yan https://orcid.org/0000-0002-1637-1426
Funding for this research was provided by:
Chongqing Municipal Health Commission (Grant No. 2020WTXM01)
Article History
Received: 18 July 2024
Revised: 27 May 2025
Accepted: 30 June 2025
First Online: 5 August 2025
Declarations
:
: Ethical approval was not required for secondary analyses of anonymized data aggregated by the Chongqing Center for Disease Control and Prevention.
: Not applicable.
: The authors have no competing interests to declare that are relevant to the content of this article.