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Published in: Diabetologia 10/2019

Open Access 01-10-2019 | Gestational Diabetes | Article

High maternal early-pregnancy blood glucose levels are associated with altered fetal growth and increased risk of adverse birth outcomes

Authors: Madelon L. Geurtsen, Eef E. L. van Soest, Ellis Voerman, Eric A. P. Steegers, Vincent W. V. Jaddoe, Romy Gaillard

Published in: Diabetologia | Issue 10/2019

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Abstract

Aims/hypothesis

The study aimed to assess the associations of maternal early-pregnancy blood glucose levels with fetal growth throughout pregnancy and the risks of adverse birth outcomes.

Methods

In a population-based prospective cohort study among 6116 pregnant women, maternal non-fasting glucose levels were measured in blood plasma at a median 13.2 weeks of gestation (95% range 9.6–17.6). We measured fetal growth by ultrasound in each pregnancy period. We obtained information about birth outcomes from medical records and maternal sociodemographic and lifestyle factors from questionnaires.

Results

Higher maternal early-pregnancy non-fasting glucose levels were associated with altered fetal growth patterns, characterised by decreased fetal growth rates in mid-pregnancy and increased fetal growth rates from late pregnancy onwards, resulting in an increased length and weight at birth (p ≤0.05 for all). A weaker association of maternal early-pregnancy non-fasting glucose levels with fetal head circumference growth rates was present. Higher maternal early-pregnancy non-fasting glucose levels were also associated with an increased risk of delivering a large-for-gestational-age infant, but decreased risk of delivering a small-for-gestational-age infant (OR 1.28 [95% CI 1.16, 1.41], OR 0.88 [95% CI 0.79, 0.98] per mmol/l increase in maternal early-pregnancy non-fasting glucose levels, respectively). These associations were not explained by maternal sociodemographic factors, lifestyle factors or BMI. Maternal early-pregnancy non-fasting glucose levels were not associated with preterm birth or delivery complications.

Conclusions/interpretation

Higher maternal early-pregnancy non-fasting glucose levels are associated with decreased fetal growth rates in mid-pregnancy and increased fetal growth rates from late pregnancy onwards, and an increased risk of delivering a large-for-gestational-age infant. Future preventive strategies need to focus on screening for an impaired maternal glucose metabolism from preconception and early pregnancy onwards to improve birth outcomes.
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Metadata
Title
High maternal early-pregnancy blood glucose levels are associated with altered fetal growth and increased risk of adverse birth outcomes
Authors
Madelon L. Geurtsen
Eef E. L. van Soest
Ellis Voerman
Eric A. P. Steegers
Vincent W. V. Jaddoe
Romy Gaillard
Publication date
01-10-2019
Publisher
Springer Berlin Heidelberg
Published in
Diabetologia / Issue 10/2019
Print ISSN: 0012-186X
Electronic ISSN: 1432-0428
DOI
https://doi.org/10.1007/s00125-019-4957-3

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