Body composition in late preterm infants in the first 10 days of life and at full term
2014 (English)In: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 103, no 7, 737-743 p.Article in journal (Refereed) Published
To investigate changes in body weight, fat-free mass, fat mass and percentage of body fat during early life and at full-term postconceptional age (PCA) in preterm infants born after 32 gestational weeks and before 37.
Twenty-nine late preterm infants underwent growth and body composition assessment by air displacement plethysmography (ADP) at the age of 4 days and at full-term PCA. In 25 of these infants, body composition was assessed three times between days four and nine of life. The preterm infants were compared with 29 full-term infants, matched for gestational age, sex and body weight.
There was a significant increase in birth weight and fat-free mass between days four and nine of life. Preterm infants had significantly more body fat 382 ± 180 g vs 287 ± 160 g than full-term infants at full-term PCA. Preterm infants showed poor linear growth between birth and full-term PCA.
Weight gain after the initial postnatal weight loss consists of gain in fat-free mass. At full-term PCA, preterm infants were stunted. When compared with full-term new born infants matched for body weight and gestational age, preterm infants had more body fat and a higher percentage of body fat.
Place, publisher, year, edition, pages
Wiley-Blackwell, 2014. Vol. 103, no 7, 737-743 p.
Air displacement plethysmography; Body composition; Fat mass; Fat-free mass; Preterm infants
IdentifiersURN: urn:nbn:se:liu:diva-109118DOI: 10.1111/apa.12632ISI: 000337572700022PubMedID: 24628453OAI: oai:DiVA.org:liu-109118DiVA: diva2:737541