Table 3 Areas Under the ROC Curve (AUC), Sensitivity and specificity by the optimized cutoff points for glucose level at admission in predicting in hospital mortality.
Group | AUC (95% CI) | Cut off According to Youden’s Index (mg/dl) | Sensitivity (%) | Specificity (%) | P value | PPV,95%CI | NPV,95%CI | Accuracy,95%CI |
|---|---|---|---|---|---|---|---|---|
Diabetes (n = 132) | 0.66 (0.56–0.76) | 214 | 69 | 61 | 0.006 | 0.72 (0.68–0.75) | 0.89 (0.82–0.96) | 0.84 (0.77–0.91) |
Nondiabetes (n = 203) | 0.71 (0.62–0.80) | 148 | 67 | 75 | P < 0.001 | 0.57 (0.48–0.57) | 0.74 (0.67–0.80) | 0.70 (0.64–0.76) |