In a cluster randomised controlled trial in Cape Town townships , neighbourhoods were randomised within matched pairs to 1 ) the control , healthcare at clinics ( n = 12 neighbourhoods ; n = 594 women ) , or 2 ) a home visiting intervention by CBW trained in cognitive-behavioural strategies to address health risks ( by the Philani Maternal , Child Health and Nutrition Programme ) , in addition to clinic care ( n = 12 neighbourhoods ; n = 644 women ) .