Lu, Aomen
Xu, Qian
Article History
Received: 11 August 2026
Accepted: 17 September 2026
First Online: 23 September 2026
Declarations
Ethics approval and consent to participate: CHARLS was approved by the Biomedical Ethics Review Board of Peking University (IRB00001052-11015 for the household survey and IRB00001052-11014 for blood collection). All participants provided written informed consent. The present secondary analysis used de-identified public data.
Consent for publication: Not applicable.
Competing interests: The authors declare no competing interests.
Clinical trial number: Not applicable.