Li, Houlin
Shi, Lin
Chen, Xuelan
Wang, Mo
Article History
Received: 17 January 2023
Accepted: 16 June 2023
First Online: 24 June 2023
Declarations
:
: This study investigated de-identified data retrieved from the public database of the National Health and Nutrition Examination Survey. The ethics approval was granted by the National Center for Health Statistics Ethics Review Committee. All procedures were carried out in accordance with relevant guidelines and regulations (Declaration of Helsinki). All individuals provided written informed consent before participating in the study.
: Not applicable.
: The authors declare no competing interests.