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Original Paper

Body Composition within the First 3 Months: Optimized Correction for Length and Correlation with BMI at 2 Years

Hawkes C.P.a,d,i · Zemel B.S.b, c · Kiely M.f, g · Irvine A.D.h, i · Kenny L.C.e, g · O'B Hourihane J.d, g · Murray D.M.d, g

Author affiliations

Divisions of aEndocrinology and Diabetes, and bGastroenterology, Hepatology and Nutrition, The Children's Hospital of Philadelphia, and cPerelman School of Medicine, University of Pennsylvania, Philadelphia, Pa., USA; Departments of dPaediatrics and Child Health, and eObstetrics and Gynaecology, University College Cork, fSchool of Food and Nutritional Science, University College Cork, and gThe Irish Centre for Fetal and Neonatal Translational Research, Cork, and hDepartment of Clinical Medicine, Trinity College Dublin, and iThe National Children's Research Centre, Dublin, Ireland

Related Articles for ""

Horm Res Paediatr 2016;86:178-187

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: April 19, 2016
Accepted: July 21, 2016
Published online: August 25, 2016
Issue release date: October 2016

Number of Print Pages: 10
Number of Figures: 3
Number of Tables: 4

ISSN: 1663-2818 (Print)
eISSN: 1663-2826 (Online)

For additional information: http://www.karger.com/HRP

Abstract

Background/Aims: Although early infant growth has implications for future health, body composition reference data in infancy are limited. The aim of this study was to describe reference data for fat mass (FM) and fat-free mass (FFM) corrected for length (L) within the first 3 months and to evaluate if these measures predict the body mass index (BMI) at 2 years. Methods: Term infants had air displacement plethysmography performed at birth (n = 1,063) and approximately 2 months later (n = 922, between 49 and 86 days). Age- and sex-specific reference data were generated for FM, FFM, FM/L3 and FFM/L2 and compared with BMI at 2 years. Results: FM/L3 and FFM/L2 were the optimal indices independent of length. In the first 3 months, mean FM/L3 increased (males, from 2.7 to 5.9 kg/m3; females, from 3.2 to 6.1 kg/m3), whereas FFM/L2 remained relatively stable (males, from 11.8 to 12.7 kg/m2; females, from 12.8 to 12.1 kg/m2). The odds of a BMI Z-score ≥2 at 2 years increased with increasing FM (OR 2.7, 95% CI 1.97-3.7) and weight (OR 2.27, 95% CI 1.64-3.13) Z-scores at 2 months. Conclusions: FM/L3 and FFM/L2 provide length-independent measures of FM and FFM in infancy. During the first 3 months, there is an increase in FM/L3, but not in FFM/L2. The weight Z-score at 2 months is as good at predicting BMI at 2 years as body composition parameters.

© 2016 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: April 19, 2016
Accepted: July 21, 2016
Published online: August 25, 2016
Issue release date: October 2016

Number of Print Pages: 10
Number of Figures: 3
Number of Tables: 4

ISSN: 1663-2818 (Print)
eISSN: 1663-2826 (Online)

For additional information: http://www.karger.com/HRP


Copyright / Drug Dosage / Disclaimer

Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.
Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
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