Liu, Yan
Article History
Received: 30 October 2024
Accepted: 10 April 2025
First Online: 20 July 2026
Declarations
Ethical approval: I confirm that all the research meets ethical guidelines and adheres to the legal requirements of China. The IRB approval number for the main household survey, including anthropometrics, is IRB00001052-11015; the IRB approval number for biomarker collection, was IRB00001052-11014.
Consent for publication: Not applicable.
Competing interests: The authors declare no competing interests.