Xie, Shitong
Wang, Dingyao
Wu, Jing
Liu, Chunyu
Jiang, Wenchen
Funding for this research was provided by:
National Natural Science Foundation of China (71673197)
Article History
Received: 14 December 2021
Accepted: 4 June 2022
First Online: 16 June 2022
Declarations
:
: The 2020 Tianjin Health Service Survey was approved by the National Health Commission of China (No. [2018]576) and was conducted in accordance with the Declaration of Helsinki. Respondents were recruited by Tianjin Health Commission in all 16 districts of Tianjin with a multi-stage, stratified cluster random sampling strategy. Informed consent was obtained from all individual participants included in the study. Participants were informed about their freedom of refusal. Anonymity and confidentiality were maintained throughout the research process.
: Informed consent for publication was obtained from all individual participants. Participants were informed about their freedom of refusal for data publication. Anonymity and confidentiality were maintained in this publication.
: The authors declare that they have no competing interests.