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Authors
Zhou, Haoqi
Shi, Yu
Zhou, Xiaohua
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Funding
Funding for this research was provided by:
National Key Research and Development Program of China,China (2021YFF0901400)
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Article History
Received: 19 May 2025
Accepted: 23 August 2025
First Online: 31 August 2025
Declarations
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: Ethical approval for all the CHARLS waves was granted from the Institutional Review Board at Peking University. The IRB approval number for the main household survey, including anthropometrics, is IRB00001052-11015; the IRB approval number for biomarker collection, was IRB00001052-11014. During the fieldwork, each respondent who agreed to participate in the survey was asked to sign two copies of the informed consent, and one copy was kept in the CHARLS office, which was also scanned and saved in PDF format. Four separate consents were obtained: one for the main fieldwork, one for the non-blood biomarkers and one for the taking of the blood samples, and another for storage of blood for future analyses.
: Not applicable.
: The authors declare no competing interests.
