The joint effects of water and sanitation on diarrhoeal disease: a multicountry analysis of the <scp>D</scp>emographic and <scp>H</scp>ealth <scp>S</scp>urveys

Abstract

Water and sanitation interventions should be combined to maximise the number of cases of diarrhoeal disease prevented in children under 5. Further research should identify the sources of variability seen between countries and across time. These national surveys likely include substantial measurement error in the categorisation of water and sanitation, making it difficult to interpret the roles of other pathways.