Table 2.
Confusion matrices for time of booking and day of surgery model
| Model | PAE (label) | No PAE (label) |
Total | Accuracy | Sensitivity | Specificity | PPV | NPV |
|---|---|---|---|---|---|---|---|---|
| Booking | ||||||||
| 95.2% | 1.2% | 99.6% | 11.9% | 95.6% | ||||
| PAE | 5 | 37 | 42 | |||||
| No PAE | 398 | 8658 | 9056 | |||||
| Total | 403 | 8695 | 9098 | |||||
| Day of surgery | ||||||||
| 95.4% | 2.7% | 99.7% | 30.6% | 95.7% | ||||
| PAE | 11 | 25 | 36 | |||||
| No PAE | 392 | 8670 | 9062 | |||||
| Total | 403 | 8695 | 9098 | |||||
PAE: perioperative adverse event; NPV: negative predictive value; PPV: positive predictive value.