Table 3. Prognostic values of each scoring model for the enrolled patients requiring mechanical ventilation.
| Scoring models | Cut-off | Se | Sp | Youden index | AUC | 95% CI |
|---|---|---|---|---|---|---|
| APACHE II | 25.5 | 0.689 | 0.893 | 0.581 | 0.800 | 0.699-0.904 |
| APACHE III | 86.0 | 0.689 | 0.821 | 0.510 | 0.773 | 0.663-0.883 |
| MODS | 7.5 | 0.754 | 0.714 | 0.468 | 0.759 | 0.643-0.876 |
| SAPS II | 53.0 | 0.770 | 0.821 | 0.592 | 0.813 | 0.704-0.923 |
| SOFA | 7.5 | 0.902 | 0.786 | 0.687 | 0.890 | 0.813-0.967 |
| Combined diagnosis | 0.548 | 0.934 | 0.786 | 0.720 | 0.890 | 0.803-0.967 |
Se, sensitivity; Sp, specificity; ROC curve, receiver operating characteristic curve; APACHE, the acute Physiology and Chronic Health Evaluation; MODS, multiple organ dysfunction syndrome; SAPS, Simplified Acute Physiology Score II; SOFA, Sepsis-related Organ Failure Assessment; AUC, area under the curve; 95% CI, 95% confidence interval.