McKechnie AC, et al. Maternal variables influencing duration of breastfeeding among low-income mothers. Infant Child Adolesc Nutr. Jun 2009;1(3):126-132.
This study investigated the relationship between mothers who breastfed exclusively and those who breastfed partially, as well as the duration of breastfeeding. The results showed that the mothers who breastfed exclusively breastfed longer, were older, and had lower body mass indexes than those mothers who partially breastfed.