This renewal proposal is to fund waves 5 (2021) and 6 (2024) of the China Health and Retirement Study (CHARLS). The overarching goal is to further develop a first rate longitudinal, public use, aging survey for China that is comparable with HRS aging surveys from other parts of the world. The CHARLS national baseline survey was conducted in 2011-12. It is a nationally representative survey that includes one person per household aged 45 years of age or older and their spouse (totaling 17,708 individuals) living in 10,257 households in 450 villages/urban communities in 150 counties/districts in 28 of China?s 30 provinces excluding Tibet. Waves 2, 3 and 4 were fielded in 2013, 2015 and 2018 respectively. Some 86.5% of wave 1 respondents were re-contacted in wave 4. A special wave to collect life history data was fielded in 2014, using resources from the National Natural Science Foundation of China (NSFC) and other sources. In wave 4 we added a Harmonized Cognitive Assessment Protocol (HCAP), harmonized to similar efforts in the US, Mexico, England, South Africa and India; to measure dimensions of Alzheimer?s Disease and related dementias (ADRD) for respondents 60 and over. We will continue CHARLS HCAP for all respondents 60 and over in wave 6 and for a subset of respondents in wave 5. Waves 5 and 6 for CHARLS would provide data over a 13 year period for those beginning in wave 1.This will allow not only examining longer-run consequences of events that occurred earlier in life, but also to follow the time-path of these outcomes. This will also enable research on causal links between health behaviors, environment or policy changes and health outcomes. Each wave of the CHARLS data has always been released publicly, for free, within one and one half years of the end of data collection. This practice will continue into the future.

Public Health Relevance

The China Health and Retirement Longitudinal Study (CHARLS) has already begun to enrich the international landscape of aging studies. CHARLS follows closely the existing Health and Retirement Studies around the world in order to provide the capability for scholars to engage in comparative studies as well as studies of the special conditions in China. The first four national waves of CHARLS were fielded in 2011, 2013, 2015 and 2018 and waves 5 and 6 are planned for 2021 and 2024; including updates of the CHARLS Harmonized Cognitive Assessment Protocol (HCAP) of Alzheimers Disease and Related Dementias (ADRD).

National Institute of Health (NIH)
National Institute on Aging (NIA)
Research Project (R01)
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Social Sciences and Population Studies B Study Section (SSPB)
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Phillips, John
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Peking University
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Sha, Tingting; Cheng, Wenwei; Yan, Yan (2018) Prospective associations between pulse pressure and cognitive performance in Chinese middle-aged and older population across a 5-year study period. Alzheimers Res Ther 10:29
Qin, Tingting; Liu, Wenhua; Yin, Minghui et al. (2017) Body mass index moderates the relationship between C-reactive protein and depressive symptoms: evidence from the China Health and Retirement Longitudinal Study. Sci Rep 7:39940
Zhang, Chuanchuan; Lei, Xiaoyan; Strauss, John et al. (2017) Health Insurance and Health Care among the Mid-Aged and Older Chinese: Evidence from the National Baseline Survey of CHARLS. Health Econ 26:431-449
Ning, Meng; Zhang, Qiang; Yang, Min (2016) Comparison of self-reported and biomedical data on hypertension and diabetes: findings from the China Health and Retirement Longitudinal Study (CHARLS). BMJ Open 6:e009836
Zhao, Yaohui; Crimmins, Eileen M; Hu, Peifeng et al. (2016) Prevalence, diagnosis, and management of diabetes mellitus among older Chinese: results from the China Health and Retirement Longitudinal Study. Int J Public Health 61:347-56
Liu, Cong; Yang, Changyuan; Zhao, Yaohui et al. (2016) Associations between long-term exposure to ambient particulate air pollution and type 2 diabetes prevalence, blood glucose and glycosylated hemoglobin levels in China. Environ Int 92-93:416-421
Hu, Peifeng; Herningtyas, Elizabeth H; Kale, Varsha et al. (2015) External quality control for dried blood spot-based C-reactive protein assay: experience from the indonesia family life survey and the longitudinal aging study in India. Biodemography Soc Biol 61:111-20
Lei, Xiaoyan; Strauss, John; Tian, Meng et al. (2015) Living arrangements of the elderly in China: evidence from the CHARLS national baseline. China Economic J 8:191-214
Lei, Xiaoyan; Sun, Xiaoting; Strauss, John et al. (2014) Depressive symptoms and SES among the mid-aged and elderly in China: evidence from the China Health and Retirement Longitudinal Study national baseline. Soc Sci Med 120:224-32
Zhao, Yaohui; Hu, Yisong; Smith, James P et al. (2014) Cohort profile: the China Health and Retirement Longitudinal Study (CHARLS). Int J Epidemiol 43:61-8

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