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Exp Clin Endocrinol Diabetes. 2013 May;121(5):262-5. doi: 10.1055/s-0033-1334907. Epub 2013 Feb 28.

Large- and small-for-gestational-age neonates born by women with gestational diabetes mellitus diagnosed by the new IADPSG criteria: a case-control study of 289 patients and 1 108 controls.

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Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynecology, "Papageorgiou" General Hospital, Medical School, Aristotle University of Thessaloniki, Greece.



The primary aim of this case-control study was to compare women whose pregnancy was complicated with gestational diabetes mellitus (GDM), diagnosed by the new International Association of Diabetes and Pregnancy Study Groups (IADPSG) criteria, with a control group of healthy, pregnant women in terms of incidence of large- (LGA) and small-for-gestational-age (SGA) neonates. Our secondary aim was to compare intrauterine growth of fetuses between the same 2 populations.


The study included 289 women diagnosed as having GDM in the current pregnancy and 1 108 pregnant controls. Women were followed-up every 2 (GDM group) or 4 weeks (control group). The main metabolic parameters recorded were body mass index, fasting plasma glucose, home blood glucose and glycated hemoglobin A1c. The main ultrasonographic parameters were estimated fetal weight (EFW), head (HC) and abdominal circumferences (AC). Decisions on treatment modification in the GDM group were based on both metabolic and ultrasonographic parameters.


There was no evidence for a difference in the incidence of LGA (9.9 vs. 9.2%, Chi-square, p=0.745) or SGA (10.5 vs. 9.0%, p=0.524) in GDM and in control group, respectively. No significant differences were found in EFW or AC between GDM and control groups during the second and third trimester.


Incidence of LGA and SGA neonates is similar among healthy pregnant women and women with GDM, diagnosed by the new IADPSG criteria and treated according to both metabolic and ultrasonographic parameters.

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