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Life sciences · Journal article
Global Health Action · July 17, 2026
Early or partial results. Treat as a signal, not a conclusion.
This scoping review characterizes 11 health and demographic surveillance sites (HDSS) in Ethiopia covering 27 districts and identifies their potential as infrastructure for longitudinal aging research. The review projects substantial growth in the adult population aged ≥40 years but identifies limited geographic coverage and resource constraints as key gaps.
Scoping review of infrastructure, not primary health outcome research. Adults aged ≥40 years living in 11 Ethiopian health and demographic surveillance sites. n = 979.
11 HDSS currently exist in Ethiopia, each with more than 9,000 households and average household size of at least three 56 articles were included in the review from a total of 979 screened A total of 27 districts (1-6 districts per HDSS) and 12 sub-districts are included across all HDSS
Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.
This review maps existing surveillance infrastructure that could support longitudinal aging research in Ethiopia, though it does not provide health outcome data. The projected 40% increase in adults ≥40 years by 2037 indicates growing capacity for aging-related studies, but geographic gaps limit generalizability.
Scoping review characterizing existing surveillance infrastructure with projections but no direct health outcome data or intervention testing.
As stated by the source record.
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This review maps existing surveillance infrastructure that could support longitudinal aging research in Ethiopia, though it does not provide health outcome data. The projected 40% increase in adults ≥40 years by 2037 indicates growing capacity for aging-related studies, but geographic gaps limit generalizability.
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Health and demographic surveillance sites (HDSS) provide sampling frames to conduct longitudinal studies. This review aims to provide a comprehensive characterization of HDSS in Ethiopia and assess its potential as a robust infrastructure for longitudinal studies on aging-related and other health outcomes. We searched databases including PubMed for peer-reviewed articles, HDSS reports, strategic papers, and other pertinent literature, and extracted pertinent information. Projection of adult population (aged ≥40 years) for the respective HDSS was done based on the estimated growth rate. From a total of 979 articles, 56 were included in the review. Currently, 11 HDSS are present in Ethiopia, and each has more than 9,000 households with an average household size of at least three. HDSS have unique characteristics and are designed to focus on respective geographic and demographic contexts. A total of 27 districts (1-6 districts per HDSS) and 12 sub-districts are included across all HDSS. The number of adults aged ≥40 years is projected to rise from 210, 673 in 2024 to 295,780 in 2037, indicating their potential as infrastructure to conduct studies on aging. Limited geographic coverage across regions and resource constraints are identified gaps in HDSS. Major cities, urban areas, and remote areas may lack sufficient coverage or representation. In light of the anticipated significant increase in the number of older adults in the HDSS capture sites, HDSS can serve as an infrastructure for conducting studies on aging-related and other health outcomes in Ethiopia.
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