Comparison of High and Normal Birth Weight Infants on Eating, Feeding Practices, and Subsequent Weight.

Objectives High birth weight (HBW ≥ 4000 g) infants are at increased risk for obesity, but research has yet to identify the mechanism for this increased risk and whether certain subsets of HBW infants are at greater risk. Methods This exploratory study examined child eating behaviors and maternal feeding practices and beliefs across 21 HBW and 20 normal birth weight (NBW, 2500-3999 g) infants at 7-8 months of age using maternal-report measures (n = 41) and a bottle feeding task (n = 16). Results HBW infants were at increased risk for high weight-for-length at 7-8 months (F (2, 38) = 6.03, p = .02) compared to NBW infants, but no statistically significance differences on weight gained per day since birth, child eating behaviors, or most maternal feeding practices and beliefs were found between HBW and NBW infants. However, HBW infants who maintained a high weight-for-length (≥ 85th percentile) at 7-8 months had a higher birth weight, gained more weight per day, and had lower maternal-reported satiety responsiveness and maternal social interactions during feedings than their HBW counterparts who were currently below the 85th percentile. Conclusions for Practice HBW infants did not differ from NBW infants on eating behaviors and feeding practices, but children born at HBW who maintain excess weight during infancy do differ from those infants who fall below the 85th percentile for weight-for-length. Future research should identify risk factors that longitudinally differentiate HBW infants at greatest risk for maintaining excess weight and develop early screening and intervention efforts for this subset of at-risk infants.