| Cutoff point (mm3) | |||
| 8 | 9 | 10 | 11 |
FP | 17 | 5 | 1 | 0 |
TN | 33 | 45 | 49 | 60 |
TP | 48 | 48 | 46 | 41 |
FN | 2 | 2 | 4 | 1 |
Sensitivity | 96% | 96% | 92% | 97% |
Specificity | 66% | 90% | 98% | 100% |
PPV | 73% | 90% | 97% | 100% |
NPV | 94% | 95% | 92% | 98% |