The Effect of Malaria on Stunting: an Instrumental Variables Approach
Transactions of the Royal Society of Tropical Medicine and Hygiene(2021)
Abstract
BACKGROUND:Previous studies have found mixed evidence for an effect of malaria on stunting, but have suffered from concerns about confounding and/or power. Currently, an effect of malaria on stunting is not included in the Lives Saved Tool (LiST) model.METHODS:We used instrumental variables regression with the sickle cell trait and random assignment to bednets as instruments in the analysis of data on children aged 0-2 y from a bednet trial in western Kenya.RESULTS:We estimated that one additional clinical malaria episode per year increases the odds of a child being stunted by 6% (OR estimate: 1.06, 95% CI 1.01 to 1.11).CONCLUSIONS:Our finding that malaria affects stunting suggests that an effect of malaria on stunting in young children should be considered in the LiST model.
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Key words
ITNs,IV,LiST model,malaria
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