Workload predictions and sensitivity and specificity in predicting death within 24 hours for National Early Warning Score (NEWS) and local EWS for unselected respiratory population
| NEWS band | Mandated escalation to: | % of observations in each band | Median no per day (range) | Sensitivity for predicting death within 24 hours | Specificity for predicting death within 24 hours |
| 0 | Nil | 17.86 | 32 (3–75) | 100.00 | 0.00 |
| 1–4 | Nurse | 67.34 | 180 (21–457) | 99.44 | 15.09 |
| 5–6 | Doctor | 8.82 | 60 (10–184) | 88.64 | 74.51 |
| 7 or more | Registrar | 5.97 | 38 (2–158) | 68.53 | 91.16 |