SAGE Harmonisation Study
The original databases are from the WHO Study on Global Ageing and Adult Health (SAGE) ( https://www.who.int/data/data-collection-tools/study-on-global-ageing-and-adult-health ), version 1, retrieved in 2015.
**Acknowledgement:**
This study uses data from the WHO Study on Global AGEing and Adult Health (SAGE). The SAGE study is funded by the U.S. National Institute on Aging and has received financial support through Interagency Agreements (OGHA 04034785; YA1323-08-CN-0020; Y1-AG-1005-01) and Grants (R01-AG034479; IR21-AG034263-0182). The authors gratefully acknowledge the World Health Organization who provided data for this study.
**References:**
* Kowal P, Chatterji S, Naidoo N, Biritwum R, Fan W, Lopez Ridaura R, et al. Data resource profile: the World Health Organization Study on global AGEing and adult health (SAGE). Int J Epidemiol 2012;41(6):1639–49.
* Chatterji, Somnath, and Kowal, Paul. WHO Study on Global AGEing and Adult Health (SAGE): Wave 1, 2007-2010. Inter-university Consortium for Political and Social Research [distributor], 2013-12-20. https://doi.org/10.3886/ICPSR31381.v1
Harmonization Study Design
A harmonised dataset can be created for each wave and population according to the ATHLOS DataSchema and the harmonisation codes located on Github:
DataSchema: https://athlos.pssjd.org/ws/file-dl/network/athlos/DataSchema_ATHLOS.xlsx
Harmonisation codes: https://github.com/athlosproject/athlos-project.github.io/tree/master/SAGE
Anyone interested in using the harmonised data from the SAGE study via the ATHLOS DataSchema should register on the website https://apps.who.int/healthinfo/systems/surveydata/index.php/catalog, download the necessary data and use the harmonisation codes. For more detailed help on this process, please contact us.
Populations
The household section of the survey covered all households in all nine provinces in South Africa. Institutionalised populations are excluded. The individual section covered all persons aged 18 years and older residing within individual households. As the focus of SAGE is older adults, a much larger sample of respondents aged 50 years and older were selected with a smaller comparative sample of respondents aged 18-49 years.
The household section of the survey covered all households in all ten administrative regions in Ghana. Institutionalised populations are excluded. The individual section covered all persons aged 18 years and older residing within individual households. As the focus of SAGE is older adults, a much larger sample of respondents aged 50 years and older were selected with a smaller comparative sample of respondents aged 18-49 years.
The household section of the survey covered all households in the People's Republic of China. Two special administrative regions Hong Kong and Macau are excluded. Institutionalised populations are also excluded. The individual section covered all persons aged 18 years and older residing within individual households. As the focus of SAGE is older adults, a much larger sample of respondents aged 50 years and older were selected with a smaller comparative sample of respondents aged 18-49 years.
The household section of the survey covered all households in 19 of the 28 states in India which covers 96% of the population. Institutionalised populations are excluded. The individual section covered all persons aged 18 years and older residing within individual households.
The household section of the survey covered all households in all seven federal districts of the Russian Federation. Institutionalised populations are also excluded. The individual section covered all persons aged 18 years and older residing within individual households. As the focus of SAGE is older adults, a much larger sample of respondents aged 50 years and older were selected with a smaller comparative sample of respondents aged 18-49 years.
The household section of the survey covered all households in the municipality of Shanghai. Institutionalised populations are excluded. The individual section covered all persons aged 18 years and older residing within individual households. As the focus of SAGE is older adults, a much larger sample of respondents aged 50 years and older were selected with a smaller comparative sample of respondents aged 18-49 years.
The household section of the survey covered all households in all 32 federal states in Mexico. Institutionalised populations are excluded. The individual section covered all persons aged 18 years and older residing within individual households. As the focus of SAGE is older adults, a much larger sample of respondents aged 50 years and older were selected with a smaller comparative sample of respondents aged 18-49 years.