Summary of the Risk of Malignancy Algorithm findings in three samples with different base rates of ovarian cancer
| Variable | Novotny (2012) | Moore (2014) | Moore (2009) |
| Base rate of ovarian cancer (%) | 8.2 | 29.9 | 43.8 |
| Benign cases (%) | 91.8 | 70.1 | 56.2 |
| Sensitivity | 0.86 | 0.94 | 0.92 |
| Specificity | 0.95 | 0.76 | 0.75 |
| False positives (%) | 4.6 | 17.2 | 14.2 |
| False negatives (%) | 1.2 | 1.9 | 3.4 |