TABLE 3.
Predictive performance of m-APACHE-II score for in-hospital mortality in cohort 1a
| m-APACHE-II score at day 0 | Crude mortality rate (%) | Result for a threshold value ≥index value |
% correctly classified | |||
|---|---|---|---|---|---|---|
| Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | |||
| 2 | 0/3 (0.00) | 100.0 | 0.0 | 100 | 16.0 | |
| 3 | 0/3 (0.00) | 100.0 | 4.8 | 16.7 | 100 | 20.0 |
| 4 | 0/3 (0.00) | 100.0 | 9.5 | 17.4 | 100 | 24.0 |
| 6 | 1/3 (33.3) | 100.0 | 14.3 | 18.2 | 100 | 28.0 |
| 7 | 1/3 (33.3) | 91.7 | 17.5 | 17.5 | 91.7 | 29.3 |
| 8 | 1/4 (25.0) | 83.3 | 20.6 | 16.7 | 86.7 | 30.7 |
| 9 | 0/4 (0.00) | 75.0 | 25.4 | 16.1 | 84.2 | 33.3 |
| 10 | 1/11 (9.09) | 75.0 | 31.8 | 17.3 | 87.0 | 38.7 |
| 11 | 1/7 (14.3) | 66.7 | 47.6 | 19.5 | 88.2 | 50.7 |
| 12 | 0/6 (0.00) | 58.3 | 57.1 | 20.6 | 87.8 | 57.3 |
| 13 | 1/7 (14.3) | 58.3 | 66.7 | 25.0 | 89.4 | 65.3 |
| 14 | 0/3 (0.00) | 50.0 | 76.2 | 28.6 | 88.9 | 72.0 |
| 15 | 1/6 (16.7) | 50.0 | 81.0 | 33.3 | 89.5 | 76.0 |
| 16 | 3/5 (60.0) | 41.7 | 88.9 | 41.7 | 88.9 | 81.3 |
| 17 | 0/3 (0.00) | 16.7 | 92.1 | 28.6 | 85.3 | 80.0 |
| 18 | 1/2 (50.0) | 16.7 | 96.8 | 50.0 | 85.9 | 84.0 |
| 21 | 0/1 (0.00) | 8.3 | 98.4 | 50.0 | 84.9 | 84.0 |
| 22 | 1/1 (100.0) | 8.3 | 100.0 | 100 | 85.1 | 85.3 |
a
Crude mortality rate is the ratio of the number of patients who died to the total number of patients. PPV, positive predictive value; NPV, negative predictive value.