Prenatal perception of breastfeeding recommendations predicts early breastfeeding outcomes of participants in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC).

Background: Prenatal psychosocial factors predict breastfeeding practices but are not assessed in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC).

Objectives: This study examined how prenatal perceptions of WIC's breastfeeding recommendations were associated with early breastfeeding outcomes.

Methods: This study used longitudinal data from a national sample of 2053 pregnant participants in the WIC Infant and Toddler Feeding Practices Study-2 (WIC ITFPS-2) in 2013, the only national data assessing prenatal perceptions of WIC's breastfeeding recommendations. Early breastfeeding outcomes included breastfeeding initiation, breast milk first fed after birth, breastfeeding in the first hour, breast milk first fed after leaving the hospital, and breastfeeding status at the first and third months. The primary predictor was the participant's prenatal perception of whether WIC recommended breastfeeding only or not. Log-binomial regression was used with adjustment for socio-demographics, previous breastfeeding, WIC participation, breastfeeding support, and infant feeding intentions (IFI).

Results: Without controlling for IFI, the perception of WIC recommending breastfeeding only predicted breastfeeding outcomes positively. The risk ratio (RR) associated with prenatal perceptions varied from 1.14 (95% CI: 1.03, 1.25; P = 0.008) for breastfeeding in the first hour, to 1.27 (95% CI: 1.12, 1.43; P < 0.001) for breast milk first fed after leaving hospital, to 1.66 (95% CI: 1.35, 2.04; P < 0.001) for 3-mo breastfeeding only. After controlling for IFI, the RRs were 1.13 (95% CI: 1.02, 1.24; P = 0.017) for breastfeeding in the first hour, 1.20 (95% CI: 1.06, 1.35; P = 0.004) for breast milk first fed after leaving hospital, and 1.49 (95% CI: 1.21, 1.84; P < 0.001) for 3-mo breastfeeding only, suggesting that prenatal perception was independently associated with breastfeeding outcomes.

Conclusions: Prenatal perception of WIC's breastfeeding recommendations can be regarded as a new psychosocial predictor of breastfeeding and a possible target for future intervention.