Journal
NUTRIENTS
Volume 13, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/nu13010227
Keywords
premature infant; nutrition; growth; moderately preterm; extrauterine growth restriction; energy; protein
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The study found that inadequate energy and protein intake in the first week of life negatively affected neonatal growth in moderate preterm infants. Therefore, nutritional support should be optimized from birth onwards to improve neonatal weight gain.
The purpose of this study was to determine the influence of first-week nutrition intake on neonatal growth in moderate preterm (MP) infants. Data on neonatal morbidity and nutrition intake on day of life 7 (DoL7) were prospectively collected from 735 MP infants (32(0/7)-34(6/7) weeks gestational age (GA)). Multivariable regression was used to assess the factors associated with extrauterine growth restriction (EUGR) defined as a decrease of more than 1 standard deviation (SD) in the weight z-score during hospitalization. Mean (SD) gestational age and birth weight were 33.2 (0.8) weeks and 2005 (369) g. The mean change in the weight z-score during hospitalization was -0.64 SD. A total of 138 infants (18.8%) had EUGR. Compared to adequate growth infants, EUGR infants received 15% and 35% lower total energy and protein intake respectively (p < 0.001) at DoL7. At DoL7, each increase of 10 kcal/kg/d and 1 g/kg/d of protein was associated with reduced odds of EUGR with an odds ratio of 0.73 (95% CI, 0.66-0.82; p < 0.001) and 0.54 (0.44-0.67; p < 0.001), respectively. Insufficient energy and protein intakes on DoL7 negatively affected neonatal growth of MP infants. Nutritional support should be optimized from birth onwards to improve neonatal weight growth.
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