Table 3.
Table showing correlation between RVG and Root ZX mini methods with respect to working length at canal1, canal 2, canal 3 and their average by Karl Pearson’s correlation and inter examiner agreement with respect to working length at canal1, canal 2, canal 3 and their average by Kappa statistic.
| Canals | Correlation between RVG and Root ZX mini methods with respect to working length by Karl Pearson’s correlation coefficient |
||
|---|---|---|---|
| r-value | t-value | p-value | |
| Canal 1 | 0.9346 | 13.8978 | 0.0001∗ |
| Canal 2 | 0.9507 | 16.2175 | 0.0001∗ |
| Canal 3 | 0.9356 | 14.0221 | 0.0001∗ |
| Average | 0.9900 | 37.0720 | 0.0001∗ |
| Canals |
Inter examiner Agreement by Kappa statistic |
|||||
|---|---|---|---|---|---|---|
| Agreement |
Expected Agreement |
Kappa | Std. Err. | Z-value | p-value | |
| Canal 1 | 92.22% | 71.85% | 0.7237 | 0.1128 | 6.4100 | 0.0001∗ |
| Canal 2 | 93.81% | 66.22% | 0.8167 | 0.1167 | 7.0000 | 0.0001∗ |
| Canal 3 | 93.64% | 73.92% | 0.7560 | 0.1106 | 6.8300 | 0.0001∗ |
| Average | 95.98% | 69.64% | 0.8675 | 0.1129 | 7.6800 | 0.0001∗ |