Relation of Glucose Tolerance to Complications of Pregnancy in Nondiabetic Women

Abstract
An increase in fetal and maternal complications has been documented in cases of gestational diabetes, but the glucose levels that predict an increased risk have not been clearly defined. We evaluated the frequency of several neonatal complications (macrosomia, congenital anomalies, perinatal mortality, and prematurity) and maternal complications (toxemia, cesarean section, or both) in relation to glucose tolerance in 249 women in the third trimester of pregnancy. None of the women had previous evidence of diabetes, and all had normal results on an oral glucose-tolerance test, according to accepted criteria.