The sensitivity, specificity, PPV, and NPV for statistically significant variables
| Variable | PPV | Sensitivity | Specificity | NPV | F necrophorum (n = 37) | Other Bacteria (n = 39) | P Value Adjusted |
|---|---|---|---|---|---|---|---|
| SVT | 0.857 | 0.649 | 0.897 | 0.73 | 24 (64%) | 4 (10%) | .000024 |
| Extramastoid osteomyelitis | 0.833 | 0.541 | 0.897 | 0.67 | 20 (54%) | 4 (10%) | .00036 |
| Perisigmoid epidural abscess | 0.63 | 0.73 | 0.59 | 0.69 | 27 (73%) | 16 (43%) | .005 |
| SVT and extramastoid bone erosion | 1 | 0.459 | 1 | 0.66 | 17 (46%) | 0 | .000023 |
| SVT and perisigmoid epidural abscess | 0.826 | 0.514 | 0.897 | 0.66 | 19 (51%) | 4 (10%) | .0006 |
| Perisigmoid epidural abscess and extramastoid bone erosion | 0.889 | 0.432 | 0.949 | 0.64 | 16 (43%) | 2 (5%) | .00054 |