Li, Xinyuan
Mao, Yafei
Zhu, Shumin
Ma, Jin
Gao, Shichao
Jin, Xiuyu
Wei, Zishuan
Geng, Yulan
Article History
Received: 14 October 2022
Accepted: 9 January 2023
First Online: 18 January 2023
Declarations
:
: The survey protocol was approved by the Research Ethics Review Board of the National Center for Health Statistics (ExternalRef removed). The NCHS Research Ethics Review Board reviewed and approved NHANES, and all survey participants provided written informed consent. Therefore, no further ethical approval and informed consent were required.Table removed
: Since all NHANES data were de-identified, the study did not require the approval of the institutional board review committee or the informed consent of participants.
: The authors declare that they have no conflict of interest.