Sensitivity, specificity, negative predictive value (NPV) and positive predictive value (PPV) at NEWS thresholds of 5 and 7
| Low-risk group (cut-off less than 5 for NEWS) | Low and moderate risk group combined (cut-off less than 7 for NEWS) | |||||
| Sensitivity | Specificity | NPV | Sensitivity | Specificity | PPV | |
| NEWS2All COPD | 0.85 | 0.40 | 0.97 | 0.68 | 0.64 | 0.15 |
| NEWS2 | 0.90 | 0.30 | 0.97 | 0.71 | 0.55 | 0.13 |
| NEWS | 0.89 | 0.27 | 0.96 | 0.64 | 0.55 | 0.12 |
| DECAF | 0.93 | 0.52 | 0.99 | 0.73 | 0.80 | 0.25 |