Poverty and postnatal depression: a systematic mapping of the evidence from low and lower middle income countries

► Postnatal depression in poor countries is a major public health problem. ► 65% of research from sub-Saharan Africa on postnatal depression is from Nigeria and South Africa. ► Household- and community-level poverty influences on postnatal depression have been ignored. ► To understand PND in poor countries, research has to acknowledge neighbourhoods and communities.