Table 4 Comparison of the prognostic accuracy of the A-DROP system and CURB-65 score and PSI
Sensitivity for mortality, % | |||
|---|---|---|---|
|  | A-DROP scores | 3–5 | 12.5 |
|  | CURB-65 scores | 3–5 | 0 |
| Â | PSI risk classes | IV- V | 87.5 |
Specificity for mortality, % | |||
|  | A-DROP scores | 3–5 | 84.6 |
|  | CURB-65 scores | 3–5 | 84.6 |
| Â | PSI risk classes | IV- V | 46.2 |
Positive predictive values for mortality, % | |||
|  | A-DROP scores | 3–5 | 33.3 |
|  | CURB-65 scores | 3–5 | 0 |
| Â | PSI risk classes | IV- V | 50 |
Negative predictive values for mortality, % | |||
|  | A-DROP scores | 3–5 | 61.1 |
|  | CURB-65 scores | 3–5 | 57.9 |
| Â | PSI risk classes | IV- V | 85.7 |