Zhang, Binbin
Fan, Yaqi
Wang, Yuxue
Zhang, Li
Li, Chunjun
He, Jiangshan
Guo, Pei
Zhang, Mianzhi
Zhang, Minying
Article History
Received: 26 February 2021
Accepted: 4 June 2021
First Online: 11 June 2021
Declarations
:
: The study strictly followed the Declaration of Helsinki. The study design and data analyses were performed in Nankai University, while questionnaire interview and measurement of obesity indexes were performed in Tianjin First Central Hospital and Tianjin Union Medical Center. Written informed consent was got from each participant. The protocol for the research was reviewed and approved by ethical committees from Nankai University and the hospitals in which the study was conducted.
: Not applicable.
: The authors declare that they have no competing interests.