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Friday, April 6, 2012

WHO Study on global AGEing and adult health 2002 - 2011: WHO | SAGE

SAGE Cohorts: 2002-2011, Background and Objectives

The WHO Multi-Country Studies unit developed the Study on Global AGEing and Adult Health (SAGE) as part of a Longitudinal Survey Programme to compile comprehensive longitudinal information on the health and well-being of adult populations and the ageing process. The core SAGE collects data on respondents aged 18+ years, with an emphasis on populations aged 50+ years, from nationally representative samples in six countries (China, Ghana, India, Mexico, Russian Federation and South Africa). The survey instruments and methods described on this website were adapted from those used by the World Health Survey (WHS) and/or from 16 surveys on ageing (including the US Health and Retirement Survey (HRS) and the UK English Longitudinal Study of Ageing (ELSA)). 

Household and individual level data on persons aged 50+ years are available from 20 countries as part of the core SAGE, the World Health Survey Plus (WHS+), COURAGE and SAGE-INDEPTH. SAGE has pursued cross-study comparisons and analyses with other data collection efforts such as the Study on Health, Ageing and Retirement in Europe (SHARE) and demographic surveillance fieldsites in INDEPTH. The health and vignettes questions in the SHARE self-completed vignettes questionnaire were drawn from SAGE and were implemented in an additional 11 countries. Eight INDEPTH HDSS fieldsites have implemented an abbreviated SAGE instrument, and three HDSS completed the full SAGE in a small sample of respondents aged 50+ years. Survey tools for SAGE-INDEPTH and SHARE are available through this website (click on link, "3. Additional SAGE Data and Methods"), with data available on request.

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