Associations of Measured Protein and Energy Intakes with Growth and Adiposity in Human Milk-Fed Preterm Infants at Term Postmenstrual Age: A Cohort Study.

Abstract:

OBJECTIVE:To determine the associations of measured protein, energy, and protein-to-energy (PER) intakes with body composition in human milk (HM)-fed preterm infants. STUDY DESIGN:Neonates born at < 33 gestational weeks were eligible. Standard fortification method with modular supplements was used and the HM composition was measured. The weight gain velocity was calculated, and body composition was assessed by air displacement plethysmography at 40 weeks' postmenstrual age (PMA). The fat mass percentage and fat mass index were used as indicators of adiposity, with convenience cut-offs ≤ -1 and ≥ + 1 z-scores for low and high adiposity, respectively. RESULTS:Thirty-three infants were included (median [interquartile range] gestational age: 30 [28-31] weeks; birth weight: 1.175 [1.010-1.408] g); 36.4 and 84.8% did not receive the minimum recommended protein and energy intakes, respectively. Weight gain velocity showed positive weak-to-moderate correlations with nutrient intakes. Overall, no correlations between nutrient intakes and body composition were found. Infants with lower adiposity received lower energy, protein, and PER intakes, while those with higher adiposity received lower energy intake but higher PER intake. CONCLUSION:Overall, no correlations of nutrient intakes with body composition were found; however, differences in nutrient intakes were found between infants with lower and higher adiposity at term PMA.

journal_name

Am J Perinatol

authors

Macedo I,Pereira-da-Silva L,Cardoso M

doi

10.1055/s-0038-1626717

subject

Has Abstract

pub_date

2018-07-01 00:00:00

pages

882-891

issue

9

eissn

0735-1631

issn

1098-8785

journal_volume

35

pub_type

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