Metadata record for Chinese Longitudinal Healthy Longevity Survey (CLHLS), 1998-2005 Inter-university Consortium for Political and Social Research ICPSR metadata records are licensed under a Creative Commons Attribution-Noncommercial 3.0 United States License . 2013-05-21 Chinese Longitudinal Healthy Longevity Survey (CLHLS), 1998-2005 24901 10.3886/ICPSR24901.v2 Yi, Zeng Vaupel, James W. Zhenyu, Xiao Yuzhi, Liu Chunyuan, Zhang United Nations Population Fund Hong Kong Research Grants Council United States Department of Health and Human Services. National Institutes of Health. National Institute on Aging National Natural Science Foundation of China (R01 AG023627-01) (70533010) Inter-university Consortium for Political and Social Research 2009-05-21 2009-06-04 2009-06-04 Documentation has been added. Yi, Zeng, James W. Vaupel, Xiao Zhenyu, Liu Yuzhi, and Zhang Chunyuan. Chinese Longitudinal Healthy Longevity Survey (CLHLS), 1998-2005. ICPSR24901-v2. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2009-06-04. doi:10.3886/ICPSR24901.v2 activities of daily living aging caregivers diet family life family relations health care services health status illness life expectancy life satisfaction living arrangements marriage rates older adults perceptions physical condition quality of life NACDA.V ICPSR.XVII.D DSDR.III DSDR.IX The Chinese Longitudinal Healthy Longevity Survey (CLHLS) provides information on health status and quality of life of the elderly aged 65 and older in 22 provinces of China in the period 1998 to 2005. The study was conducted to shed light on the determinants of healthy human longevity and oldest-old mortality. To this end, data were collected on a larger percentage of the oldest population, including centenarian and nonagenarian, than had previously been studied. The CLHLS provides information on the health, socioeconomic characteristics, family, lifestyle, and demographic profile of this aged population. Data are provided on respondents' health conditions, daily functioning, self-perceptions of health status and quality of life, life satisfaction, mental attitude, and feelings about aging. Respondents were asked about their diet and nutrition, use of medical services, and drinking and smoking habits, including how long ago they quit either or both. They were also asked about their physical activities, reading habits, television viewing, and religious activities, and were tested for motor skills, memory, and visual functioning. In order to ascertain their current state of health, respondents were asked if they suffered from such health conditions as hypertension, diabetes, heart disease, stroke, cancer, emphysema, asthma, tuberculosis, cataracts, glaucoma, gastric or duodenal ulcer, arthritis, Parkinson's disease, bedsores, or other chronic diseases. They were also asked if they needed assistance with bathing, dressing, toileting, or feeding, and who provided help in times of illness. Other questions focused on siblings, parents, and children, the frequency of family visits, and the distance lived from each other. Demographic items specify age, sex, ethnicity, place of birth, marital history and status, history of childbirth, living arrangements, education, main occupation before age 60, and sources of financial support. 1998 2005 1998-03-01 2005-10-31 China (Peoples Republic) Global county individual The most elderly population in the counties and cities of 22 provinces in China during the period 1998-2005. survey data All centenarians from the randomly selected counties and cities of 22 provinces in China who agreed to participate in the study. For each centenarian, one octogenarian aged 80-89 living nearby, one nearby nonagenarian aged 90-99, and one nearby younger elder aged 65-79 of predesignated age and sex were interviewed. computer-assisted self interview (CASI) , face-to-face interview , self-enumerated questionnaire

ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

Performed consistency checks.Standardized missing values. The response rate was 88 percent.

Mini-Mental State Examination (MMSE)

Activities of Daily Living (ADL)

 Ann Arbor, Mi.: Inter-university Consortium for Political and Social Research Additional special permissions, where applicable, are described in the restrictions field. This data collection may not be used for any purpose other than statistical reporting and analysis. Use of these data to learn the identity of any person or establishment is prohibited. In preparing the data files for this collection for public archiving and distribution, the producers have removed direct identifiers and characteristics that might lead to identification of data subjects. Users interested in obtaining a CD-ROM containing the 1998, 2000, and 2002 Chinese Longitudinal Healthy Longevity Survey micro datasets need to download the Chinese Longitudinal Healthy Longevity Survey restricted data use agreement form from the ICPSR Web site.

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 Definitions authorized user - A faculty member, staff member, or student at a member institutionICPSR - Inter-university Consortium for Political and Social Researchmember institution - An institutional member of ICPSROfficial/Designated Representative - An individual appointed to represent a university's interests in ICPSR. This individual is also charged with providing user support to campus users. promise of confidentiality - A promise to a respondent or research participant that the information the respondent provides will not be disseminated without the permission of the respondent; that the fact that the respondent participated in the study will not be disclosed; and that disseminated information will include no linkages to the identity of the respondent. Such a promise encompasses traditional notions of both confidentiality and anonymity. Names and other identifying information regarding respondents, proxies, or other persons on whom the respondent or proxy provides information, are presumed to be confidential.research subject - A person or organization observed for purposes of research. Also called a respondent. A respondent is generally a survey respondent or informant, experimental or observational subject, focus group participant, or any other person providing information to a study or on whose behalf a proxy provides information.

AVAILABLE. This study is freely available to the general public.

 The original collector of the data, ICPSR, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses. 1998-2005 Longitudinal Data, Version 1 2000-2005 Longitudinal Data, Version 1 2002-2005 Longitudinal Data, Version 1 2005 Cross-Sectional Data, Version 1