Abstract

AIM: To determine the prevelance of gestational diabetes mellitus (GDM) and the predisposing factors for GDM in healthy pregnant patients by using oral glucose tolerance test. MATERIAL AND METHOD: The singleton pregnant patients who were admitted to our polyclinic between the dates of April 1st 2004 and April 1st 2005 being smaller than 24 week and not having the diagnosis of either diabetes or gestational diabetes mellitus and not having the history of preeclampsia, hypertension, eclampsia in their previous pregnancies and also not having any systemic diseases were ineluded to our study. During routine follow up, body mass index (BMI) of the pregnant patients between the 24 and 28 weeks was calculated, fasting blood glucose levels were deteeted following 10-16 hours of starvation, obstetric Doppler US and obstetric anomaly scan. 100 gr oral glucose tolerance test was applied again to those pregant patients following 3 days of 300 gr of carbohydrate containing diet. Than pregnant patients were grouped into patients having GDM or not. Comparisons were ade about terms of age, number of deliveries, family history, weight before pregnancy, body mass index before pregnancy, weight gain up to 24 weeks of gestation. FINDINGS: 6 patients were diagnosed as GDM according to American Diabetes Association. No statistically significant difference was diagnosed in terms of age, number of deliveries, weight before pregnancy and weight at 24 th week of gestation between the groups. In GDM diagnosed group family history of diabetes, body mass index before preganey and mean weight gain during 24 weeks were statistically significant. CONCLUSION: Gestational diabetes mellitus prevalance was detected as 6% and according to our findings the factor leading to gestational diabetes mellitus were commented as having family diabetes history, higher BMI before pregnancy, higher weight gain during 24 weeks of gestation.