TABLE 2.
Diagnostic Characteristics of Two Classification and Regression Analysis Models
| Model | Indirect ARDS (n = 46) | Direct ARDS (n = 52) | Sensitivity % (95% CI) | Specificity % (95% CI) | Positive Predictive Value % (95% CI) | Negative Predictive Value % (95% CI) |
|---|---|---|---|---|---|---|
| Model 1 (clinical variables) | 89 (77–96) | 57 (41–71) | 70 (57–80) | 81 (64–93) | ||
| Predicted indirect | 26 | 6 | ||||
| Predicted direct | 20 | 46 | ||||
| Model 2 (biomarkers and clinical variables) | 89 (80–97) | 80 (69–92) | 84 (74–93) | 86 (76–96) | ||
| Predicted indirect | 37 | 6 | ||||
| Predicted direct | 9 | 46 | ||||
ARDS = acute respiratory distress syndrome.