Study design HAALSI is a population-based community observational study with
longitudinal follow-up at 3-year intervals. Embedded in the study are several randomized
experiments and evaluations of public policies. HAALSI includes virtually complete mortality
ascertainment, using state-of-the-art algorithms for verbal autopsies. 24

Cohort Profile: Health and Ageing in Africa: A Longitudinal Study of an INDEPTH
Community in South Africa (HAALSI). …