Chronic suppurative otitis media (CSOM) causes preventable deafness and disproportionately affects children living in poverty. Our hypothesis was that health promotion in women’s groups would increase their knowledge, attitudes and practices (KAP) regarding ear disease and reduce the prevalence of CSOM in their children. | Effect of a participatory intervention in women’s self-help groups for the prevention of chronic suppurative otitis media in their children in Jumla Nepal: A cluster-randomised trial