Highlights
- •Weight gained during pregnancy and maternal BMI predict birth weight in gestational diabetes.
- •Early prenatal nutritional monitoring improves newborn’s birth weight.
- •These results may contribute to a review of prenatal routines.
Abstract
Aims
To evaluate the predictive factors of birth weight (BW) of newborns of women with
gestational diabetes mellitus (GDM).
Methods
A cross-sectional study was performed among pregnant women with GDM treated in a public
maternity unit, Brazil. We selected 283 pregnant women, with nutritional follow-up
initiated till the 28th gestational week, singleton pregnancy, without chronic diseases
and with birth weight information of the newborns. The predictive factors of BW were
identified by multivariate linear regression.
Results
Mean maternal age was 31.2 ± 5.8 years; 64.4% were non-white; 70.1% were pre-gestational
overweight or obese. Mean BW was 3234.3 ± 478.8 g. An increase of 1 kg of weight in
the first and third trimesters increased BW by 21 g (p = 0.01) and 27 g (p = 0.03),
respectively. Similarly, the other predictive factors of BW were pre-gestational body
mass index (β = 17.16, p = 0.02) and postprandial plasma glucose in the third trimester
(β = 4.14, p = 0.008), in the model adjusted by gestational age at delivery (β = 194.68,
p < 0.001).
Conclusions
The best predictors of BW were gestational age at birth, and maternal pre-gestational
and gestational anthropometric characteristics. Maternal glycaemic levels may also
influence BW. The results may contribute to a review of prenatal routines for pregnant
women with GDM.
Keywords
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Article info
Publication history
Published online: February 02, 2018
Accepted:
January 26,
2018
Received in revised form:
January 17,
2018
Received:
July 31,
2017
Identification
Copyright
© 2018 Elsevier B.V. All rights reserved.
