ReviewConflict and health2026
The health outcomes of shelter and settlements interventions in humanitarian crises: a systematic review.
Review in Conflict and health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
backgroundShelter and settlement are critical determinants of health in humanitarian crises, yet their impacts on health outcomes remain underexplored. This review synthesizes published evidence on how shelter and settlement interventions impact health outcomes in humanitarian crises.
methodsA systematic review of peer-reviewed literature was conducted to identify studies examining the association between shelter and settlement interventions and health outcomes in humanitarian crises. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines a protocol was developed and three databases were searched for studies published between 2005 and 2025. Relevant data were extracted and thematically analysed.
resultsA total of 138 articles were found. Thematic analysis identified six themes (living conditions, accommodation type, camp and site planning, displacement status, essential household items and cash-based interventions). Three cross cutting themes of gender, climate change and vulnerability were also identified. Two themes (living conditions and accommodation type) are presented here. Poor living conditions including damaged shelters, poor housing design and materials were associated with increased risks of communicable diseases such as malaria, diarrhoea, and soil-transmitted helminth infections while overcrowding heightened injury risk and psychological distress. Accommodation type influenced health outcomes with short-term shelters linked to acute mental health challenges and increased injuries; medium-term shelters with increased risk of non-communicable disease; and long-term housing with deteriorations in chronic disease management.
conclusionsThis systematic review synthesises the evidence base showing how shelter and settlement interventions play a role in influencing health outcomes in humanitarian crises. It shows that shelter is a critical yet often under recognised determinant of health in these settings. Health outcomes are influenced by housing quality, accommodation type and duration, camp and settlement planning, displacement dynamics including frequency and length of displacement, and access to essential household items. Poor shelter conditions are likely to increase the risk of communicable diseases and mental health issues and have the potential to worsen chronic disease outcomes and risk. A key contribution of this review is the identification of shelter as a core entry point for public health action, highlighting the need for clearer operational guidance on shelter typologies, minimum standards, and their integration with health, protection and social services.
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