Demographic Analysis of Healthy Longevity in China

描述(申请人提供)：我们建议继续并加强现有的中国人纵向健康长寿调查(CLHLS)研究，该研究于1998年、2000年和2002年进行。我们计划在2005年和2008年再进行两次后续调查，分别对百岁老人、非老年老人和八旬老人进行约7,450，7,500和7,130次访谈，以收集更广泛的问卷数据。将于2002至2008年间去世的10,382名年龄在80-110岁之间的最年长受访者将通过访问已故长老的近亲收集关于死亡和生前健康状况的相对全面的数据。在2005年及2008年的调查中，我们亦会跟进访问约1,000名年龄介乎65至79岁的年青长者，以及约1,000名年龄介乎35至71岁的年长受访者的成年子女。与1998年、2000年和2002年一样，这项最大规模的纵向调查研究将在22个省的一半县/市进行，其中包括年龄较小的老人和成年子女的分样本；这些省份的人口约占中国总人口的85%。这项申请寻求NIA资金支持80-110岁年龄最大的主要样本；较年轻的长辈和成年子女的次样本将由中国来源涵盖。 我们计划利用传统和先进的人口统计/统计方法，分析CLHLS数据，并从2005年和2008年的两次后续浪潮中大幅提高统计能力。我们的目标是更好地了解残疾的模式、变化趋势、健康生存的风险因素和决定因素、残疾、死亡率和老年死亡前的痛苦程度，特别是在高龄老年人中。我们计划继续对CLHLS数据集进行归档，使其便于用户使用，并广泛供中国内外的科学家使用。 与1997-2004年一样，该项目将继续是国家安全局支持的健康长寿研究网络的一部分，由杜克大学的詹姆斯·W·沃佩尔和辛迪·欧文斯协调。

DESCRIPTION (provided by applicant): We propose to continue and strengthen the existing Chinese Longitudinal Healthy Longevity Survey (CLHLS) study carried out in 1998, 2000, and 2002. We plan to gather more extensive questionnaire data through conducting two more follow-up waves in 2005 and 2008 with about 7,450, 7,500, and 7,130 interviews to centenarians, non-agenarians, and octogenarians, respectively. Relatively comprehensive data on mortality and health status before dying for the 10,382 oldest-old interviewees aged 80-110 who will have died between 2002 and 2008 waves will be collected through interviewing a close family member of the deceased elders. In the 2005 and 2008 waves, we will also conduct follow-up interviews with about 1,000 younger elders aged 65-79 and about 1,000 elderly interviewees' adult children aged 35-71. As was done in 1998, 2000, and 2002, this largest longitudinal survey study on oldest-old with sub-samples of younger elderly and adult children will be conducted in randomly selected half of the counties/cities of 22 provinces; the population in those provinces constitutes about 85% of the total population of China. This application seeks NIA funds to support the main sample of the oldest-old aged 80-110; the sub-sample of the younger elders and adult children will be covered by Chinese sources. Using conventional and advanced demographic/statistical methods, we plan to analyze the CLHLS data with substantially increased statistical power to be achieved from two more follow-up waves in 2005 and 2008. We aim to gain a better understanding of patterns, trends of change in disability, risk factors and determinants of healthy survival, disability, mortality, and extent of suffering before dying at old ages, especially among the oldest-old. We plan to continue to archive the CLHLS data sets and make them userfriendly and widely available to scientists outside and inside of China. As in 1997-2004, this project will continue to be part of the NIA-supported research network on healthy longevity coordinated by James W. Vaupel and Cindy Owens at Duke University.