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Asmall, Taherah; Abrams, Amber; Röösli, Martin; Cissé, Guéladio; Carden, Kirsty; Dalvie, Mohamed Aqiel
The Science of the total environment, 11/2021, Letnik: 793Journal Article
Droughts are associated with several health effects and Africa is uniquely vulnerable. Despite this, there has been no previous review of the literature on the health effects of drought in Africa. This study systematically reviewed the epidemiological research on the association between drought and adverse health effects in Africa (2012–2019). A total of fifteen articles were included in the review after screening 1922 published (peer-reviewed) and unpublished articles. These studies were all conducted in 9 Sub-Saharan African countries. The drought-related health effects identified were on adverse nutritional health (n = 8) including malnutrition resulting in reduced body size and wasting, stunting and underweight, mortality from food insecurity, anaemia from food insecurity and nutrition-related disability from food insecurity; drought and diseases due to microbial contamination of water (n = 6) including cholera, diarrhoeal diseases, scabies, vector-borne diseases and malaria-related mortality; and drought and health behaviours (n = 1) including HIV prevention and care behaviours. The study found limited evidence of a high prevalence of malnutrition, an increased prevalence of anaemia, cholera, scabies, dengue and an increased incidence in child disabilities during periods of drought. Additionally, there was limited evidence on improved child nutritional health with improved water and sanitation access, and an increased prevalence of child wasting, stunting and underweight in drought-prone areas. No evidence of drought on other health outcomes was found. However, all the studies had more than one limitation including weak study design, a lack of comparison to a drought period, uncertainty on the onset and end of drought, lack of control for confounding, presence of contextual factors, weak outcome and/or exposure measure, small sample size and lack of generalizability. This review found weak evidence for all health outcomes measured but highlights key areas for further research and contextual factors which need to be considered for interventions. Display omitted •First review of studies on health effects of droughts in Africa•Existing evidence in Africa on adverse health outcomes and drought is limited.•Drought impacts on vulnerable groups identified.•Research gaps for future studies identified.
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Vir: Osebne bibliografije
in: SICRIS
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