Table 4 Sensitivity, specificity, positive and negative predictive values of 30 day mortality of the different predictive rules*.
Cut‐off points | Sensitivity | Specificity | Positive predictive value | Negative predictive value |
---|---|---|---|---|
PSI risk class | ||||
⩾I | NA | NA | NA | NA |
⩾II | 100 | 0.0 | 8.6 | NA |
⩾III | 97.7 | 25.8 | 11.0 | 99.2 |
⩾IV† | 83.9 | 50.2 | 13.6 | 97.1 |
V | 46.0 | 84.8 | 22.1 | 94.4 |
CURB65 score | ||||
⩾0 | 100 | 0.0 | 8.6 | NA |
⩾1 | 98.9 | 11.4 | 9.5 | 99.1 |
⩾2† | 85.1 | 46.0 | 12.8 | 97.0 |
⩾3 | 58.6 | 77.4 | 19.5 | 95.2 |
⩾4 | 23.0 | 94.4 | 27.8 | 92.9 |
5 | 3.4 | 99.5 | 37.5 | 91.7 |
CRB65 scores | ||||
⩾0 | 100 | 0.0 | 8.6 | NA |
⩾1† | 96.6 | 13.5 | 9.5 | 97.7 |
⩾2 | 67.8 | 63.4 | 14.8 | 95.5 |
⩾3 | 29.9 | 91.5 | 24.8 | 93.3 |
4 | 4.6 | 99.4 | 40.0 | 91.7 |