Fig. 1.

Flow chart of the study sample with reasons for exclusion in the grey boxes and the subsequent analytical samples in the dashed boxes for each exposure of interest – parity, age at first birth, ever/never breastfed, and lifetime breastfeeding duration. * This study was excluded from the ever/never breastfed analyses as 100% of women in the US-USC Asian population group reported never breastfeeding. This proportion may be as a result of the random sample selected from the study during the initial consortium development which may not reflect the true proportion of women who breastfed in this specific population group. Given this uncertainty, it was decided to exclude this study from the ever/never breastfed analyses