Table 3 ROC curve cut-off value for severe cases using CT-SSS and LDH
Area under curve | P value | 95% confidence interval | Cut-off value | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) | ||
|---|---|---|---|---|---|---|---|---|---|---|
Lower bound | Upper bound | |||||||||
CT-severity scoring system (CT-SSS) | 0.979 | < 0.001 | 0.947 | 1.010 | 12.5 | 92.9 | 98.7 | 97.50 | 96.30 | 96.69 |
LDH | 0.832 | < 0.001 | 0.747 | 0.917 | 386 | 78.6 | 82.3 | 70.21 | 87.84 | 80.99 |