Table 3.
Percentage difference and (p-value) between the 3 cohorts for each objective metric a
| Performance metrics | Novices vs. inter- mediates | Novices vs. experts | Inter-mediates. vs. expert |
|---|---|---|---|
| Tip–apex distance (mm) | 40 (0.03) | 48 (0.01) | 13 (0.9) |
| Cut-out rate (%) | 92 (0.03) | 95 (0.01) | 44 (1.0) |
| Procedural time (s) | 8 (1.0) | 14 (1.0) | 7 (1.0) |
| No. of radiographs (n) | 39 (0.06) | 43 (< 0.05) | 7 (1.0) |
| No. of guide-wire retries (n) | 100 (0.4) | 200 (0.3) | 100 (1.0) |
a
Adjusted p-value presented from Mann–Whitney U post-hoc testing.