Perceptions of mothers on child well-being, changes in everyday life and social sustainability: lessons learned from a community-based health promotion programme in Anuradhapura District, Sri Lanka.

Background: From 2012 to 2015, a health promotion intervention (under a project called HADP) aiming to improve children's well-being was implemented in Horowpathana, Sri Lanka. The donor organization reports positive results regarding children's well-being and behaviour changes, but mixed results regarding its sustainability. A need for a complementary evaluation was therefore identified.