Venous Blood-based Biomarkers in the China Health and Retirement Longitudinal Study (CHARLS): Rational, Design, and Results of the 2015 Wave.

Venous Blood-based Biomarkers in the China Health and Retirement Longitudinal Study (CHARLS): Rational, Design, and Results of the 2015 Wave. Am J Epidemiol. 2019 Jul 31;: Authors: Chen X, Crimmins E, Hu PP, Kim JK, Meng Q, Strauss J, Wang Y, Zeng J, Zhang Y, Zhao Y Abstract Blood biomarkers provide critical information about health of older population, especially in large developing countries where self-reports of health are often inaccurate due to lack of access to health care; however, it is very difficult to collect blood samples in representative population surveys in such countries. The China Health and Retirement Longitudinal Study (CHARLS), a nationally representative study of middle-aged and older Chinese, represents one of the first efforts to include blood biomarkers in a nationally representative survey of China. In the 2015 wave of CHARLS, 13,013 respondents located in 150 counties around China donated whole blood and assayed on a whole range of indicators. This paper describes the process of the sample collection, transportation, storage and analysis, and presents basic statistics. PMID: 31364691 [PubMed - as supplied by publisher]
Source: Am J Epidemiol - Category: Epidemiology Authors: Tags: Am J Epidemiol Source Type: research