(a) Kaplan–Meier curves for women randomized to cessation of breastfeeding at 4 months (group A: dashed line) or to continued breastfeeding (group B: solid line) and (b) Kaplan–Meier cumulative probabilities of mortality at 4,12, and 24 months post-delivery among women randomized to groups A and B. Group A, early cessation of breast-feeding; group B, continued breast-feeding. CI, confidence interval.