Introduction: Diabetes is the most common and important metabolic disorder in pregnancy period. This study aimed to determine the prevalence of gestational diabetes and its risk factors in Meibod County

Materials and Methods: This cross-sectional study was carried out using registered data of diabetes screening program for all pregnant women living in Meibod town during the years 2013-2014. In first gynecology visit, FBS test was conducted for 1209 pregnant women who had no past record of diabetes. According to existence or lack of risk factors, participants went through glucose 3-hour tolerance test (OGTT) with 75 grams of glucose. The data were analyzed using SPSS software (Vs. 18) by Chi-squared, t-test, and logistic regression test.

Results: Mean age of women with gestational diabetes was 27.8±5.85 while it was 26.1±5.35 for healthy women. There was significant relation between age, body mass index, parity, family record of the diabetes, and history of gestational diabetes (P=0.000). There was no significant relationship between gestational diabetes and history of hypertension, gestational diabetes, stillbirth, spontaneous abortion, child's weight of 4 kg or more at birth, and fetal abnormalities in previous pregnancies. There was also a significant correlation between gestational diabetes and number of risk factors (P<0.001).

Conclusion: According to the results, the prevalence of gestational diabetes was high in Meibod town and more studies are needed in this area.