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Exp Clin Endocrinol Diabetes. 2006 Jan;114(1):11-7.

Prevalence of impaired glucose tolerance 6 years after gestational diabetes.

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  • 1Friedrich-Schiller University of Jena, Department of Internal Medicine III, Jena, and Hufeland-Hospital GmbH, Bad Langensalza, Germany. wilgard.hunger-dathe@med.uni-jena.de



Prevalence of glucose metabolism disorders in women six years after gestational diabetes in the index pregnancy (GDM).


227 Caucasian women who developed GDM between 1995 and 1996 were investigated; 173 women (BMI 27.5+/-6.0 kg/m2) received 75 g oGGT on average 5.8+/-2.0 years after delivery.


Impaired glucose metabolism was found in 31.2%, IGT or IFG 19.1%, diabetes mellitus type 2 (DM2) 9.2%, diabetes mellitus type 1 (DM1) 2.3%, second GDM 0.6%. 27.2% (BMI 25-29.9 kg/m2) were overweight, 23.1% suffered from obesity (BMI 30-39.9 kg/m2) and 5.2% morbid obesity (BMI>or=40 kg/m2). In comparison to a healthy control group, women with DM2 at re-examination were: older in age (32.1+/-5.9 vs. 29.1+/-4.8 years, p<0.05), had higher BMI (29.4+/-6.9 vs. 24.6+/-4.8 kg/m2, p<0.05), higher fasting blood glucose (6.5+/-1.9 vs. 5.2+/-0.9 mmol/l, p<0.05), earlier diagnosis of GDM (25+/-8 vs. 29+/-5 SSW, p<0.05), more frequent insulin therapy during pregnancy (75 vs. 24%) and had significantly higher insulin- and C-peptide for all measures of the oGTT, whereas HbA1c was not different (4.9+/-0.5 vs. 4.8+/-0.3%, n. s.).


In an average of 5.8 years after the diagnosis of GDM, the majority of women still have chronic insulin resistance. One third has either IGT, IFG or diabetes mellitus. Therefore, a long term follow-up is strongly recommended for women diagnosed with GDM.

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