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Ethnic differences in neonatal body composition in a multi-ethnic population and the impact of parental factors: a population-based cohort study

Sletner, Line; Nakstad, Britt; Yajnik, Chittaranjan S.; Mørkrid, Kjersti; Vangen, Siri; Vårdal, Mari H; Holme, Ingar Morten K; Birkeland, Kåre I.; Jenum, Anne Karen
Journal article, Peer reviewed
Copyright: 2013 sletner et al. this is an open-access article distributed under the terms of the creative commons attribution license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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URI
https://hdl.handle.net/10642/1945
Date
2013-08-29
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  • HV - Institutt for rehabiliteringsvitenskap og helseteknologi [322]
Original version
Sletner, L., Nakstad, B., Yajnik, C. S., Mørkrid, K., Vangen, S., Vårdal, M. H., ... & Jenum, A. K. (2013). Ethnic differences in neonatal body composition in a multi-ethnic population and the impact of parental factors: a population-based cohort study. PloS one, 8(8), e73058.   http://dx.doi.org/10.1371/journal.pone.0073058
Abstract
Background

Neonates from low and middle income countries (LAMIC) tend to have lower birth weight compared with Western European (WE) neonates. Parental height, BMI and maternal parity, age and educational level often differ according to ethnic background, and are associated with offspring birth weight. Less is known about how these factors affect ethnic differences in neonatal body composition.

Objectives

To explore differences in neonatal body composition in a multi-ethnic population, and the impact of key parental factors on these differences.

Methods

A population-based cohort study of pregnant mothers, fathers and their offspring, living in Oslo, Norway. Gender- and gestational-specific z-scores were calculated for several anthropometric measurements, with the neonates of WE ethnic origin as reference. Mean z-scores for neonates with LAMIC origin, and their parents, are presented as outcome variables.

Results

537 singleton, term neonates and their parents were included. All anthropometric measurements were smaller in neonates with LAMIC origin. Abdominal circumference and ponderal index differed the most from WE (mean z-score: −0.57 (95% CI:−0.69 to −0.44) and −0.54 (−0.66 to −0.44), and remained so after adjusting for parental size. Head circumference and skin folds differed less, and length the least (−0.21 (−0.35 to −0.07)). These measures became comparable to WEs when adjusted for parental factors.

Conclusions

LAMIC origin neonates were relatively “thin-fat”, as indicated by reduced AC and ponderal index and relatively preserved length and skin folds, compared with neonates with WE origin. This phenotype may predispose to type 2 diabetes.
Publisher
Public Library of Science
Series
PloS one;8(8)

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