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Taiwan Longitudinal Study on Aging (TLSA)

發布單位:發布單位:監測研究及健康教育組

  • 瀏覽數:瀏覽數:4842
  • 修改日:修改日:2020/06/19
  • 發布日:發布日:2015/01/28
Background
In response to the potential impacts on the economic, medical, family and social aspects of population aging, one of the former institutes of the Health Promotion Administration, the Institute of Family Planning, started to plan for studies on the elderly in 1987. The baseline survey of Taiwan Longitudinal Study on Aging , also known as TLSA, was conducted on a nationally representative sample of adult residents aged 60 and above in non-aboriginal townships of Taiwan in 1989. Afterwards, the respondents have been followed every three to four years. In 1996, 2003 and 2015, refresh cohorts aged 50 and above were sampled to maintain representativeness of the younger population. In 2015, a new nationally representative sample of adult residents aged 50 and above in Taiwan was selected.

Aim of the Study
The specific aims of this survey are:
1. To understand the health status and wellbeing of the middle-aged and elderly in Taiwan, including physical function, disability, illness, mental health, health behavior, and the utilization of preventive health care.
2. To understand the social status of the middle-aged and elderly in Taiwan, including family structure, living arrangements, social support, leisure activity, socioeconomic status, life satisfaction, occupation and retirement, and awareness and utilization of services provided by the government.
3. To compare the differences of health and social status among subgroups of people characterized by their socio-economic background.
4. To explore the needs of the middle-aged and elderly on health care or supports for healthy living.

Sampling and Survey Method
Household registration data of residents aged 60 and above in non-aboriginal townships in 1988 were used as sampling frame for this study. A three-stage systematic random sampling method was used for the selection of an equal probability sample. Afterward, two fresh samples were selected in 1996 and 2003 in order to maintain representativeness of the younger age cohort and extend representativeness of the sample to the population aged 50 and above. Moreover, as attrition occurred during years of follow-up, one new cohort comprising of respondents from both the non-aboriginal and aboriginal townships was established in 2015.
Data were collected with face-to-face interview questionnaires by trained interviewers.
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