Diabetes Mellitus in pregnancy may be either gestational or pregestational. Gestational diabetes is diagnosed by two tests, Glucose Challenge Test (GCT) and Oral Glucose Tolerance Test OGTT. Maternal Diabetes may lead to fetal Macrosomia, Hyperinsulinism and Hypoglycemia.

Our research investigated if newborns of mothers with pathological / borderline GCT and normal OGTT have higher birth weight similar to infants of diabetic mothers. Methods: We reviewed 1500 deliveries. That were divided in three groups: Group A included newborns of mothers with pathological/borderline GCT and normal OGTT. Group B included newborns of diabetic mothers. Group C the control group included newborns of nondiabetic mothers. Results: Group A included 105 newborns. Group B included 27 newborns of diabetic mothers, pre and gestational diabetes. Group C included 1368 newborns of nondiabetic mothers. In group A birthweight was significantly higher (M=3605.58, SD=373.21) compared to birthweight in the control group (M=3376.04, SD=326.64) (P < 0.001). There was no significant difference in birthweight of newborns in group A (newborns of mothers with pathologic/ borderline GCT and normal OGTT) and group B (Newborns of diabetic mothers) (M=3491.30, SD=381.81), (P =0.409).