Whaley SE, et al. Impact of policy changes on infant-feeding decisions among low-income women participating in the Special Supplemental Nutrition Program for Women, Infants, and Children. Am J Public Health. 2012;102:2269-2273.
This study presents data accumulated both before and after the implementation of the new WIC food packages. Participants chose the full breastfeeding package at infant WIC enrollment more often after implementation; the issuance rate increased by 86%. For formula containing packages, issuance decreased significantly.