[Carbohydrate intolerance and pregnancy outcome].

Fifty gram oral glucose challenge test (50g GCT) was performed, as a screening test of diabetes mellitus (DM), in 289 pregnant women, and further, a 75g oral glucose tolerance test (OGTT) was done in those women with glucose level > 7.78 mmol/L. The results showed that 49 women had a glucose level > 7.78 mmol/L (16.96%), among whom 15 (5.19%) were identified as having gestational impaired glucose tolerance (GIGT), and 5 (1.73%) had gestational diabetes mellitus (GDM) as diagnosed by 75g OGTT. The prevalence of PIH, premature rupture of membrane, fetal macrosomia, cesarean section, perinatal morbidity were higher in GIGT and GDM mothers and there was a positive correlation between glucose level of 50g GCT and the birth weight of newborns. It suggested that 50g GCT may be a preferable screening test for GDM since it is simple and cheap with high sensitivity and specificity.