Table 5 Cutoff, sensitivity, specificity, AUC, PPV and NPV for umbilical artery cord blood glucose in predicting hypoglycemia
UACBG predicts hypoglycemia | cut-off, mmol/L | sensitivity | specificity | AUC | P | PPV | NPV |
|---|---|---|---|---|---|---|---|
within 2 h in all newborns | 4.150 | 0.756 | 0.532 | 0.688 (0.625–0.751) | 0.000 | 0.201 | 0.933 |
at 0.5 h after birth in all newborns | 4.550 | 0.604 | 0.813 | 0.757 (0.690–0.824) | 0.000 | 0.119 | 0.980 |
at 2 h after birth in all newborns | 3.950 | 0.805 | 0.432 | 0.637(0.550–0.725) | 0.002 | 0.122 | 0.958 |
within 2 h after birth in GDM group | 4.150 | 0.785 | 0.514 | 0.680(0.589–0.771) | 0.000 | 0.170 | 0.950 |
at 0.5 h after birth in GDM group | 4.550 | 0.648 | 0.714 | 0.703(0.594–0.811) | 0.002 | 0.089 | 0.979 |
at 2 h after birth in GDM group | 4.750 | 0.580 | 0.667 | 0.628(0.496–0.761) | 0.066 | 0.063 | 0.976 |
within 2 h after birth in other at-risk group | 3.950 | 0.803 | 0.500 | 0.678(0.586–0.771) | 0.000 | 0.292 | 0.908 |
at 0.5 h after birth in other at-risk group | 4.350 | 0.654 | 0.815 | 0.797(0.716–0.877) | 0.000 | 0.176 | 0.975 |
at 2 h after birth in other at-risk group | 3.550 | 0.906 | 0.346 | 0.620(0.496–0.744) | 0.043 | 0.257 | 0.937 |