Table 6.
Receiving operator curve analysis in diagnosing POF.
| AUC (95% CI) | Cut-off | Sensitivity | Specificity | PPV | NPV | |
|---|---|---|---|---|---|---|
| Hemoglobin (g/L) | 0.694 (0.576–0.812) | 150 | 0.533 | 0.695 | 0.333 | 0.845 |
| Platelet count (×109/L) | 0.601 (0.478–0.724) | 100 | 0.067 | 0.971 | 0.400 | 0.785 |
| Serum glucose (mmol/L) | 0.794 (0.697–0.891) | 11.1 | 0.567 | 0.857 | 0.545 | 0.882 |
| Albumin (g/L) | 0.726 (0.628–0.823) | 32 | 0.400 | 0.876 | 0.435 | 0.821 |
| Serum calcium (mmol/L) | 0.888 (0.829–0.948) | 2.0 | 0.867 | 0.790 | 0.553 | 0.954 |
| PDW (%) | 0.870 (0.801–0.939) | 16.45 | 0.867 | 0.771 | 0.520 | 0.953 |
| Ranson score | 0.727 (0.638–0.816) | 4 | 0.717 | 0.372 | 0.333 | 0.905 |
| SIRS score | 0.608 (0.500–0.716) | 3 | 0.833 | 0.329 | 0.393 | 0.898 |
AUC: area under the curve; CI: confidence intervals; PDW: platelet distribution width; POF: persistent organ failure; ROC: receiver operating curve; PPV: positive predictive value; NPV: negative predictive value.