Table 2.
Diagnostic information for the prediction of mortality on days 3 and 7 according to RDW, PLT, and RPR.
| Variable | Optimal cutoff point | Sensitivity (%) | Specificity (%) | AUC (95% CI) |
|---|---|---|---|---|
| Day 3 | ||||
| RDW (%) | 13.5 | 58.0 | 66.5 | 0.659 (0.597–0.720) |
| PLT | 70.0 | 46.6 | 66.2 | 0.697 (0.632–0.761) |
| RPR | 0.197 | 47.7 | 88.7 | 0.712 (0.649–0.774) |
| Day 7 | ||||
| RDW (%) | 13.6 | 83.9 | 45.9 | 0.681 (0.613–0.750) |
| PLT | 143 | 63.6 | 78.4 | 0.744 (0.670–0.818) |
| RPR | 0.108 | 58.9 | 82.7 | 0.750 (0.678–0.821) |
Note: CI indicates confidence interval. The maximum value of Youden index (sensitivity + specificity −1) was used as the criterion for selecting the optimal cutoff point.