Another strength is that our results provide a more complete assessment of socioeconomic inequalities in
breastfeeding rates, by estimating both relative and absolute inequalities, than common practice in inequality assessments.23 Finally, our study analysed effects of the intervention not only
on an immediate, direct outcome (
breastfeeding) but also
on a long - term
consequence of
breastfeeding (child cognitive ability) that is associated with important health and behavioural outcomes in later life.27