Table 2.
All specimens (n = 32) | Only malignant (n = 28) | |||||
---|---|---|---|---|---|---|
Pathologically positive | Pathologically negative | Total | Pathologically positive | Pathologically negative | Total | |
Positive reading | 3 | 9 | 12 | 2 | 8 | 10 |
Negative reading | 2 | 18 | 20 | 2 | 16 | 18 |
Total | 5 | 27 | 32 | 4 | 24 | 28 |
Sensitivity | 60% (15%–95%) | Sensitivity | 50% (7%–93%) | |||
Specificity | 67% (46%–84%) | Specificity | 67% (45%–84%) | |||
Accuracy | 66% (47%–81%) | Accuracy | 64% (47%–81%) | |||
PPV | 25% (12%–45%) | PPV | 20% (4%–44%) | |||
NPV | 90% (75%–96%) | NPV | 89% (74%–96%) |
PPV positive predictive value, NPV negative predictive value, Parenthesis 95% confidence intervals