Table 2.
Sensitivity, specificity, accuracy, false positives, and false negatives by evaluator 1, 2 and 3 in relation to VRF occurrence
| Evaluator | Group | Sensitivity | Specificity | Accuracy | False positive | False negative | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| n | % | n | % | n | % | n | % | n | % | ||
| 1 | • Nonfilled | 7 | 87.5 | 6 | 75.0 | 13 | 81.2 | 2 | 25 | 1 | 12.5 |
| • Gutta-percha | 5 | 62.5 | 7 | 87.5 | 12 | 75.0 | 1 | 12.5 | 3 | 37.5 | |
| • Post | 6 | 75.0 | 3 | 37.5 | 9 | 56.3 | 5 | 62.5 | 2 | 25 | |
| P value | p = 0.837 | p = 0.162 | p = 0.375 | ||||||||
| 2 | • Nonfilled | 8 | 100 | 7 | 87.5 | 15 | 93.8 | 1 | 12.5 | - - | |
| • Gutta-percha | 5 | 62.5 | 6 | 75 | 11 | 68.8 | 2 | 25 | 3 | 37.5 | |
| • Post | 6 | 75.0 | 2 | 25 | 8 | 50 | 6 | 75 | 2 | 25 | |
| P value | p = 0.304 | p = 0.056 | p = 0.030 | ||||||||
| 3 | • Nonfilled | 7 | 87.5 | 7 | 87.5 | 14 | 87.5 | 1 | 12.5 | 1 | 12.5 |
| • Gutta-percha | 6 | 75 | 7 | 87.5 | 13 | 81.3 | 1 | 12.5 | 2 | 25 | |
| • Post | 5 | 62.5 | 3 | 37.5 | 8 | 50 | 5 | 62.5 | 3 | 37.5 | |
| P value | p = 0.837 | p = 0.062 | p = 0.075 | ||||||||