Table 3.
Optimal cut-off PCT values (within 5 days from admission)
| Cut-point and indexes | All-cause mortality | Mechanical ventilation | Thrombotic events | ICU admission | Bacterial infection culture |
|---|---|---|---|---|---|
| Number of patients | 276 | 276 | 276 | 276 | 216 |
| Positive cases | 59 | 89 | 69 | 129 | 28 |
| Negative cases | 217 | 187 | 207 | 147 | 188 |
| AUC | 0.7741 | 0.7773 | 0.6666 | 0.7223 | 0.6444 |
| Optimal cut-point (ng/mL) | 0.20 | 0.33 | 1.21 | 0.09 | 1.2 |
| Accuracy | 0.6703 | 0.7391 | 0.7536 | 0.6848 | 0.7454 |
| Sensitivity | 0.8136 | 0.6742 | 0.4203 | 0.7442 | 0.5357 |
| Specificity | 0.6313 | 0.7701 | 0.8647 | 0.6327 | 0.7766 |
| Precision | 0.3750 | 0.5825 | 0.5088 | 0.6400 | 0.2632 |
| TP | 48 | 60 | 29 | 96 | 15 |
| FN | 11 | 29 | 40 | 33 | 13 |
| FP | 54 | 43 | 28 | 43 | 42 |
| TN | 93 | 144 | 179 | 144 | 146 |
TP true positive, FN false negative, FP false positive, TN true negative, AUC area under curve