Performance of decision to dispatch ambulance for composite primary outcome (death or organ support)
| Primary outcome 30 days (11.1%, 10.5%–11.7%) | |||
| n=12 653 | Death or organ support | No death or organ support | |
| Ambulance dispatched | 1335 | 9320 | Sensitivity 95% (93.7%–96.1%) Positive predictive value 12.5% (11.9%–13.2%) |
| No ambulance dispatched | 70 | 1930 | Specificity 17.2% (16.5%–17.9%) Negative predictive value 96.5% (95.6%–97.2%) |