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Feeding preterm infants after hospital discharge: Growth and development at 18 months of age

Lookup NU author(s): Richard Cooke, Professor Nicholas EmbletonORCiD, Jenny Wells


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We have shown that preterm infants fed a preterm formula grow better than those fed a standard term infant formula after hospital discharge. The purpose of this follow-up study was to determine whether improved early growth was associated with later growth and development. Preterm infants (less than or equal to 1750 g birth weight, less than or equal to 34 wk gestation) were randomized to be fed either a preterm infant formula (discharge to 6 mo corrected age), or a term formula (discharge to 6 mo), or the preterm (discharge to term) and the term formula (term to 6 mo). Anthropometry was performed at 12 wk and 6, 12, and 18 mo. Mental and psychomotor development were assessed using the Bayley Scales of Infant Development II at 18 mo. Differences in growth observed at 12 wk were maintained at 18 mo. At 18 mo, boys fed the preterm formula were 1.0 kg heavier, 2 cm longer, and had a 1.0 cm greater occipitofrontal circumference than boys fed the term formula. Boys fed the preterm formula were also 600 g heavier and 2 cm longer than girls fed the preterm formula. However, no differences were noted in MDI or PDI between boys fed the preterm formula and boys fed the term formula or between the boys fed preterm formula and girls fed the preterm formula. Overall, boys had significantly lower MDI than girls (mean difference, 6.0; p < 0.01), primarily reflecting lower scores in boys fed the term formula. Thus, early diet has long-term effects on growth but not development at 18 mo of age. Sex remains an important confounding variable when assessing growth and developmental outcome in these high-risk infants.

Publication metadata

Author(s): Cooke RJ, Embleton ND, Griffin IJ, Wells JC, McCormick KP

Publication type: Article

Publication status: Published

Journal: Pediatric Research

Year: 2001

Volume: 49

Issue: 5

Pages: 719-722

ISSN (print): 0031-3998

ISSN (electronic): 1530-0447

Publisher: Nature Publishing Group


DOI: 10.1203/00006450-200105000-00018

PubMed id: 11328958


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