Ming, Xin
Yang, Yunping
Li, Yannan
He, Ziyi
Tian, Xiaoqin
Cheng, Jin
Zhou, Wenzheng
Funding for this research was provided by:
Chongqing Science and Technology Foundation (cstc2018jscx-mszdX0021)
Chongqing Research Center for Prevention & Control of Maternal and Child Disease and Public Health
Article History
Received: 2 January 2024
Accepted: 21 May 2024
First Online: 27 May 2024
Declarations
:
: The research protocol was approved by the Institutional Ethical Committee Board of the Chongqing Health Center for Women and Children. All daily surveillance data were aggregated at the city level, not linked to any person ally identifying data, such as participant name, identity information, address, or telephone number. This study only reviewed secondary aggregated data and analyzed them at the aggregate level. thus, a waiver of written informed consent was taken by the Institutional Ethical Committee Board of the Chongqing Health Center for Women and Children.
: Not applicable.
: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.