Table 3 Discrimination ability of the model in the test dataset using a 50% probability-of-intubation cut-off
| Parameter | Value (95% CI) |
|---|---|
| Sensitivity | 83% (68-91%) |
| Specificity | 89% (74-95%) |
| Positive predictive value | 89% (76-96%) |
| Negative predictive value | 82% (67-91%) |
| Positive likelihood ratio | 7.3 (2.9-18.4) |
| Negative likelihood ratio | 0.20 (0.09-0.38) |