Does modernisation reduce the impact of breastfeeding on child survival in low income countries? Evidence from Africa and Asia

The association between duration of breastfeeding and child survival is strong and positive, especially in pre-modern societies. Breast milk provides a child with adequate nutrient intake and immunologic defense, as well as helps to regulate birth-spacing. However, forces of modernization necessarily reduce the duration and intensity of breastfeeding, thereby reducing its impact on child survival. While many studies have attempted to explore the breastfeeding-modernization-child survival nexus (Palloni and Millman 1986), cross-country studies, particularly among low income nations, are lacking. An interesting research question, therefore, is: To what extent does modernization reduce the impact of breastfeeding on child survival in low income countries?

The objectives of this study are twofold. The first is to determine the extent to which modernization mediates the impact of breastfeeding on infant and child mortality across low income countries. The second is to recommend some policy actions that would enhance complementarity in the roles of breastfeeding and modernization on one hand and infant and child mortality on the other. The study is based on 24 low-income countries where Demographic and Health Survey data are available for the year 2000 and beyond. A proportional hazards multivariate model - Cox regression - is used in the analysis. Preliminary results show that breastfeeding, as expected, is positively and strongly associated with child survival, and that the longer its duration the greater the impact on childhood mortality. Although modernization reduces its beneficial effect, longer duration of breastfeeding still ensures greater child survival, regardless.