Fig. 1

ROC curves for the value of umbilical artery cord blood glucose in predicting hypoglycemia in all newborns; (a) within 2 h after birth, (sensitivity: 0.756, specificity: 0.532); (b) at 0.5 h after birth, (sensitivity: 0.604, specificity: 0.813); (c) at 2 h after birth, (sensitivity: 0.805, specificity: 0.432). Comparison of ROC curves between the GDM group and other at-risk group; (d) within 2 h after birth, GDM group (sensitivity: 0.785, specificity: 0.514), Other at-risk group (sensitivity: 0.803, specificity: 0.500); (e) at 0.5 h after birth, GDM group (sensitivity: 0.648, specificity: 0.714), Other at-risk group (sensitivity: 0.654, specificity: 0.815); (f) at 2 h after birth, GDM group (sensitivity: 0.580, specificity: 0.667), Other at-risk group (sensitivity: 0.906, specificity: 0.346). AUC, area under the curve; GDM, gestational diabetes mellitus