Breastfeeding duration and associations with prevention of accelerated growth among infants from low-income, racially and ethnically diverse backgrounds.

OBJECTIVE: To describe breastfeeding rates from early to late infancy and to examine associations between breastfeeding duration and infant growth, including rapid weight gain (RWG, > 0·67 SD increase in weight-for-age Z-score), among infants from low-income, racially and ethnically diverse backgrounds. DESIGN: A short, prospective cohort study was conducted assessing breastfeeding status at infant ages 2, 4, 6, 9 and 12 months. Infant length and weight measurements were retrieved from electronic health records to calculate weight-for-length Z-scores and the rate of weight gain. SETTING: Pediatric clinic in the Southeastern USA. PARTICIPANTS: Mother-infant dyads (n = 256). RESULTS: Most participants were African American (48 %) or Latina (34 %). Eighty-one per cent were participating in the Special Supplemental Nutrition Program for Women, Infants and Children. Infants were breastfed for a median duration of 4·75 months, with partial more common than exclusive breastfeeding. At 12 months, 28 % of the participants were breastfeeding. Infants breastfed beyond 6 months had significantly lower growth trajectories than infants breastfed for 0-2 months (ß = 0·045, se = 0·013, P = 0·001) or 3-6 months (ß = 0·054, se = 0·016, P = 0·001). Thirty-six per cent of the infants experienced RWG. RWG was more common among infants who were breastfed for 2 months or less than 6+ month breastfed group (relative risk = 1·68, CI95 (1·03, 2·74), P = 0·03). CONCLUSIONS: Breastfeeding beyond 6 months is associated with the prevention of accelerated growth among infants from low-income, racially and ethnically diverse backgrounds, suggesting progress toward health equity.

Breastfeeding: How is it related to food insecurity and other factors among low-income mothers?

A cross-sectional study was conducted to (1) examine breastfeeding initiation and continuation rates, and; (2) investigate association between food insecurity and breastfeeding status, among low-income mothers. Mothers of infants two-months or younger were recruited from a local pediatric clinic serving primarily low-income families. Upon giving consent, mothers were interviewed in-person or over the phone in either English or Spanish. Of the total 92 mothers interviewed, 90% initiated breastfeeding, but only 24% were doing exclusive breastfeeding at 2 months of infant's age. After controlling for socio-demographics, it was found that food-insecure mothers were less likely to continue with breastfeeding (ß = -1.51, p = .024). Future research is warranted to understand pathways through which food insecurity affects breastfeeding and how this disparity can be prevented to ensure a safe and secure start for infants worldwide.