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Association between macronutrient intakes during pregnancy and risk of giving birth to small for gestational age (SGA) infants

Published online by Cambridge University Press:  24 November 2016

S.S. Sharma
Affiliation:
Nutritional Epidemiology Group, School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK
D.C. Greenwood
Affiliation:
Biostatistics Unit, Centre for Epidemiology and Biostatistics, University of Leeds, Worsley Building, Leeds LS2 9JT, UK
N.A.B. Simpson
Affiliation:
Division of Obstetrics and Gynaecology, Leeds General Infirmary, Leeds LS9 9NS, UK
J.E. Cade
Affiliation:
Nutritional Epidemiology Group, School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK
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Abstract

Type
Abstract
Copyright
Copyright © The Authors 2016 

Macronutrient intake in pregnancy may contribute to adverse birth outcomes(Reference Imdad and Bhutta1, Reference CucÓ, Arija and Iranzo2). The aim of our analysis was to explore the association between maternal macronutrient intakes and their individual components in the first trimester, with the risk of giving birth to SGA infants.

A prospective cohort in Leeds(Reference Boylan, Cade and Kirk3), UK of 1276 pregnant women aged 18–45 years provided a 24 h dietary recall. Smoking habits and alcohol consumption was assessed by questionnaire. SGA was defined as birthweight below 10th centile on a customised centile chart which was adjusted by confounding factors affecting birth weight such as maternal weight, height, ethnicity, parity at booking, gestational age at delivery and gender of neonates. Logistic regression analysis explored whether macronutrient intakes in the first trimester and their individual components was associated with risk of SGA. Models were unadjusted (model 1) and adjusted for other energy contributing nutrients, alcohol and smoking (model 2).

We found no significant associations between a particular macronutrient and their individual components with SGA, when they were adjusted for smoking and alcohol intake.

aAdjusted using the customised growth charts for maternal weight, height, ethnicity, parity, gestational age at delivery, sex of baby bAdditional adjustment for other energy contributing nutrients, and average alcohol intake and smoking status during first trimester.

This may have implications for advice given to women in pregnancy about their diet, suggesting that apart from alcohol, no one source of energy is associated with greater risk of giving birth to small for gestational age (SGA) infants.

References

1.Imdad, A & Bhutta, ZA (2011) Public Health 11, 19.Google Scholar
2.CucÓ, G, Arija, V, Iranzo, R et al. (2006) Acta Obstet Gynecol Scand 85, 413–21.10.1080/00016340600572228Google Scholar
3.Boylan, SM, Cade, JE, Kirk, SFL et al. (2008) Br J Nutr 100, 875–82.10.1017/S0007114508939842Google Scholar