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Am J Perinatol 2017; 34(08): 774-779
DOI: 10.1055/s-0036-1597992
Original Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Weight in the First Year of Life: Associations with Maternal Prepregnancy Body Mass Index and Gestational Weight Gain—Findings from a Longitudinal Pregnancy Cohort

Skye McPhie
1   Faculty of Health, School of Psychology, Centre for Social and Early Emotional Development, Deakin University, Geelong, Victoria, Australia
,
Helen Skouteris
1   Faculty of Health, School of Psychology, Centre for Social and Early Emotional Development, Deakin University, Geelong, Victoria, Australia
,
Richard P. Mattick
2   National Drug and Alcohol Research Centre, University of New South Wales, Sydney, New South Wales, Australia
,
Judy Wilson
2   National Drug and Alcohol Research Centre, University of New South Wales, Sydney, New South Wales, Australia
,
Ingrid Honan
2   National Drug and Alcohol Research Centre, University of New South Wales, Sydney, New South Wales, Australia
,
Steve Allsop
3   National Drug Research Institute, Curtin University, Perth, Western Australia, Australia
,
Lucy Burns
2   National Drug and Alcohol Research Centre, University of New South Wales, Sydney, New South Wales, Australia
,
Elizabeth Elliott
4   Discipline of Paediatrics and Child Health, The University of Sydney, The Children's Hospital at Westmead, Sydney, New South Wales, Australia
,
Samantha Teague
1   Faculty of Health, School of Psychology, Centre for Social and Early Emotional Development, Deakin University, Geelong, Victoria, Australia
,
Craig A. Olsson
1   Faculty of Health, School of Psychology, Centre for Social and Early Emotional Development, Deakin University, Geelong, Victoria, Australia
5   Murdoch Children's Research Institute, Population Studies of Adolescents, Royal Children's Hospital, Melbourne, Victoria, Australia
6   Department of Paediatrics and Psychological Sciences, University of Melbourne, Royal Children's Hospital, Melbourne, Victoria, Australia
,
Delyse Hutchinson
1   Faculty of Health, School of Psychology, Centre for Social and Early Emotional Development, Deakin University, Geelong, Victoria, Australia
2   National Drug and Alcohol Research Centre, University of New South Wales, Sydney, New South Wales, Australia
5   Murdoch Children's Research Institute, Population Studies of Adolescents, Royal Children's Hospital, Melbourne, Victoria, Australia
6   Department of Paediatrics and Psychological Sciences, University of Melbourne, Royal Children's Hospital, Melbourne, Victoria, Australia
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Publikationsverlauf

19. Oktober 2016

09. Dezember 2016

Publikationsdatum:
08. Februar 2017 (online)

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Abstract

Objective To investigate the obesogenic influence of maternal prepregnancy body mass index (BMI) and gestational weight gain (GWG) on infant weight at birth and 12 months postpartum in an Australian general population sample.

Methods Data on 1,305 pregnant women were collected on prepregnancy BMI and GWG through maternal interview, on infant weight at birth through hospital records, and on infant weight 12 months postbirth through direct measurement. Relationships between prepregnancy, gestational weight exposures, and infant weight outcomes were assessed with and without adjustment for potential confounding.

Results We observed a 14 to 24 g increase in infant birth weight for every 1 kg increase in maternal weight (infant birth weight: β(BMI) = 0.014, p < 0.000; β(GWG) = 0.012, p < 0.000; and 12 months: β(BMI) = 0.018, p < 0.000; β(GWG) = 0.024, p < 0.000). Effects remained after adjustment for potential confounders (infant birth weight: β(BMI) = 0.014, p < 0.000; β(GWG) = 0.012, p < 0.001; and 12 months: β(BMI)= 0.017, p ≤ 0.033; β(GWG) = 0.023, p = 0.001). However, the effects observed were small, and there was no evidence that GWG mediated relationships between preconception BMI and infant weight.

Conclusion In a general population sample, there is a significant but not substantial observed relationship between maternal prepregnancy BMI and GWG and infant weight outcomes, suggesting a minor role for these factors at a population level.

Keywords

maternal weight - infant weight - gestational weight - prepregnancy BMI

Note

D. H., R. P. M., S. A., L. B., E. E., and C. O. initiated the Triple B Study, designed the data collection protocol, and obtained research funding. S. M. and H. S. designed this study. S. M. conducted all analyses and drafted the manuscript under the supervision of H. S., C. O. and D. H.


J. W. and I. H. assisted with data preparation and analysis. All authors commented on drafts of the manuscript.


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