Growth of Breast-Fed and Formula-Fed Infants From 0 to 18 Months: The DARLING Study
Kathryn G. Dewey PhD, M. Jane Heinig MS, Laurie A. Nommsen MS, Janet M. Peerson MS, and Bo Lönnerdal PhD
PEDIATRICS Vol. 89 No. 6 June 1992, pp. 1035-1041
Anthropometric data were collected monthly from birth to 18 months as part of the Davis Area Research on Lactation, Infant Nutrition and Growth study, which followed infants who were either breast-fed or formula-fed during the first 12 months. The two cohorts were matched for parental socioeconomic status, education, ethnic group, and anthropometric characteristics and for infant sex and birth weight, and neither group was given solid foods before 4 months. While mean weight of formula-fed infants remained at or above the National Center for Health Statistics median throughout the first 18 months, mean weight of breast-fed infants dropped below the median beginning at 6 to 8 months and was significantly lower than that of the formula-fed group between 6 and 18 months.
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