Health and Ageing in Africa: A Longitudinal Study of an INDEPTH Community in South Africa (HAALSi)
HAALSI is an interdisciplinary study aiming to longitudinally monitor social, economic, and biological risks for chronic health conditions, whether infectious or non-infectious, in a random sample of adults aged 40 years and over in Agincourt, South Africa. The cohort consists of over 5,000 participants (2,345 men and 2,714 women). This relatively young starting age was chosen for two reasons. First, life expectancy at birth is low in South Africa, mainly due to HIV. Second, a central aim is to observe longitudinally the pre-disease pathways that evolve in middle age and affect later life health.
Study design
Cohort
Number of participants at first data collection
5,059 (participants)
Age at first data collection
≥ 40 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
The Agincourt sub-district of South Africa.
Sample features
Country
Year of first data collection
2014
Primary Institutions
Harvard University
South African Medical Research Council (SAMRC)
University of the Witwatersrand, Johannesburg
Links
Profile paper DOI
Funders
National Institute on Aging (NIA)
South African Medical Research Council (SAMRC)
University of the Witwatersrand, Johannesburg
Wellcome Trust
Ongoing?
Yes
Data types collected
- Computer, paper or task testing (e.g. cognitive testing, theory of mind doll task, attention computer tasks)
- Interview – face-to-face
- Interview – phone
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- None
- None
- None
Engagement
Keywords
Consortia and dataset groups
