Do state breastfeeding laws in the US promote breastfeeding?

摘要

ObjectivesDespite the passage of state laws promoting breastfeeding, a formal evaluation has not yet been conducted to test whether and/or what type of laws may increase breastfeeding. The enactment of breastfeeding laws in different states in the US creates a natural experiment. We examined the impact of state breastfeeding laws on breastfeeding initiation and duration as well as on disparities in these infant feeding practices.