Table 4.
Sensitivity, specificity, and accuracy of our proposed criteria using the results of each existing criteria set as the gold standard
| Criteria set | Scenario | True-negative | True-positive | False-negative | False-positive | Total | Sensitivity | Specificity* | Accuracy |
|---|---|---|---|---|---|---|---|---|---|
| 1 | A | 0 | 92 | 80 | 0 | 172 | 54% | 54% | |
| B | 80 | 87 | 0 | 5 | 172 | 100% | 94% | 97% | |
| C | 0 | 87 | 0 | 0 | 87 | 100% | 100% | ||
| 2 | A | 69 | 92 | 5 | 0 | 166 | 95% | 100% | 97% |
| B | 80 | 87 | 0 | 5 | 172 | 100% | 94% | 97% | |
| C | 69 | 87 | 0 | 0 | 156 | 100% | 100% | 100% | |
| 3 | 80 | 85 | 0 | 7 | 172 | 100% | 92% | 96% | |
| 4 | A | 0 | 92 | 80 | 0 | 172 | 54% | 54% | |
| B | 80 | 78 | 0 | 14 | 172 | 100% | 85% | 92% | |
| C | 0 | 78 | 0 | 0 | 78 | 100% | 100% | ||
| 5 | A | 74 | 87 | 1 | 5 | 167 | 99% | 94% | 96% |
| B | 80 | 44 | 0 | 44 | 168 | 100% | 65% | 74% | |
| C | 74 | 44 | 0 | 5 | 123 | 100% | 94% | 96% | |
| 6 | A | 43 | 34 | 0 | 45 | 122 | 100% | 49% | 63% |
| B | 43 | 11 | 0 | 66 | 120 | 100% | 39% | 45% | |
| C | 43 | 11 | 0 | 45 | 99 | 100% | 49% | 55% | |
| Surgeon judgment | 80 | 84 | 0 | 8 | 172 | 100% | 91% | 95% |
* Specificity could not be calculated for some criteria sets in scenarios that provide zero true-negative results because of the exclusion of the results due to indeterminate findings or because all results for these criteria sets in that scenario were positive.