A. A BRIEF INTRODUCTION to Chinese Longitudinal Survey on Healthy Longevity

1. Chinese Longitudinal Healthy Longevity StudiesA.Introduction of Chinese longitudinal survey on Healthy Longevity;B.Association of Religious Participation with Health and Survival among the Oldest Old in China

2. A. A BRIEF INTRODUCTION to Chinese Longitudinal Survey on Healthy Longevity • This is an international collaborative project, aiming at • To better understand determinants of healthy longevity, such as social, economical, behavioral, environmental and biological factors. • To enhance academic research and policy analysis on healthy aging.

3. Progress of longitudinal surveys in 1998, 2000, and 2002 (1) Achieved sample size distributions. -- Extensive questionnaire data were gathered from 8,959, 11,161, and 11,163 oldest-old aged 80+ in 1998, 2000, and 2002, respectively. -- we added 4,894 younger elderly aged 65-79 and 4,478 elderly interviewees’ adult children aged 35-65 into our sample in 2002 wave. The total sample size is now over 20,000 interviewees including oldest-old (focus), younger elderly (as a comparison group) and elders’ adult children (intergenerational relations and healthy longevity). -- Data on date/cause of death, health status, socioeconomic status, and degree/length of disability and suffering before dying, etc., were collected from 2,783, 2,406 and 1,449 deceased interviewees aged 100+, 90-99, and 80-89, respectively.

4. Age Survival interviewees deceased (proxy interview) follow-up newly interview Total M F T M F T M F T M F T 1998 baseline survey 80-89 NA NA NA 1787 1741 3528 1787 1741 3528 NA NA NA 90-99 NA NA NA 1299 1714 3013 1299 1714 3013 NA NA NA 100+ NA NA NA 481 1937 2418 481 1937 2418 NA NA NA Total NA NA NA 3567 5392 8959 3567 5392 8959 NA NA NA 2000 follow-up survey 80-89 996 1048 2044 1471 1403 2874 2467 2451 4918 339 262 601 90-99 720 907 1627 925 1260 2185 1645 2167 3812 574 612 1186 100+ 262 891 1153 256 1022 1278 518 1913 2431 348 1213 1561 Total 1978 2846 4824 2652 3685 6337 4630 6531 11161 1261 2087 3348 2002 follow-up survey 35-65 NA NA NA 3132 1346 4478 3132 1346 4478 NA NA NA 65-79 NA NA NA 2456 2438 4894 2456 2438 4894 NA NA NA 80-89 1454 1411 2865 673 672 1345 2127 2083 4210 483 377 860 90-99 948 1236 2184 590 858 1448 1538 2094 3632 547 679 1226 100+ 277 917 1194 442 1685 2127 719 2602 3321 295 941 1236 Total 2679 3564 6243 7293 6999 14292 9972 10563 20535 1325 1997 3322 Sample Distribution, 1998-2002 NA -- Not applicable

5. (3) Sampling areas -- The survey was conducted in the randomly selected half of the counties and cities of 22 provinces out of the total of 31 provinces where Han are majority. -- The population in the survey areas constitutes about 85 percent of the total population in China.

6. PERSPECTIVE General plan of our 2005 and 2008 follow-up surveys 2. Further in-depth data analysis to better understand the determinants of healthy longevity Data Availability: The 1998 baseline and 2000, 2002 follow-up healthy longevity survey data sets are now being distributed internationally by the Peking University Center for Healthy Aging and Family Studies (http://www.pku.edu.cn/academic/population/center/index.htm) and the program at Duke University (http://www.pubpol.duke.edu/centers/ppa/). Contacts: Prof. Liu Yuzhi, Peking University; E-mail: chafs@pku.edu.cn or yuzhil@pku.edu.cn Dr. Danan Gu, Duke University;E-mail: danan@aas.duke.edu