A randomized controlled trial of four interventions was conducted using tubewells (n ¼ 2,486), liquid sodium hypochlorite ('Clorin') distributed with an improved water vessel (n ¼ 2,305), hygiene promotion (n ¼ 1,877), and a combination of the three (n ¼ 2,040) to create an evidence- Higher economic status as measured through household assets was associated with lower rates of diarrhoea and greater intervention uptake, excepting Clorin. Use of soap was also associated with lower prevalence of diarrhoea.