Who develops severe malaria? Impact of access to healthcare, socio‐economic and environmental factors on children in Yemen: a case‐control study

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Abstract
Objective To investigate the impact of socio‐economic and environmental factors on developing severe malaria in comparison with mild malaria in Yemen. Method Case‐control study comparing 343 children aged 6 months to 10 years diagnosed with WHO‐defined severe malaria (cases) at the main children’s hospital in Taiz and 445 children with mild malaria (controls) diagnosed in the health centres, which serve the areas where the cases came from. Results In univariate analysis, age 2 km was significantly associated with progression to severe disease. Environmental and vector control factors associated with protection from acquiring malaria (such as sleeping under bednets) were not associated with protection from moving from mild to severe disease. Conclusions Innovative ways to improve access to antimalarial treatment for those living more then 2 km away from health centres such as home management of malaria, especially for infants and young children, should be explored in malaria‐endemic areas of Yemen.