Feng, Tong
Li, PeiPei
Duan, Ran
Jin, Zhi
Article History
Received: 26 February 2025
Accepted: 25 April 2025
First Online: 3 July 2025
Declarations
:
: The ethics review board of the National Center for Health Statistics approved all NHANES protocols, and written informed consent was obtained from all participants or their proxies for those under 18 years of age. The study was conducted in accordance with the ethical standards outlined in the 1964 Declaration of Helsinki and its subsequent amendments.
: Not applicable.
: The authors declare no competing interests.