Interobserver agreement in round 1 and round 2 by seniority
| Question | Statistical parameter | Round 1 | Round 2 | ||
| Senior | Junior | Senior | Junior | ||
| Ordinal analysis including all categories | Kendall’s Coefficient | 0.859 | 0.821 | 0.872 | 0.813 |
| Ordinal analysis of 3 categories <1% vs 1%–10% vs >10% | Kendall’s Coefficient | 0.837 | 0.792 | 0.860 | 0.768 |
| Binary analysis using one as cut-off (0% vs all others (≥1%)) | Kappa coefficient | 0.620 (0.467, 0.783) | 0.650 (0.547, 0.753) | 0.554 (0.389, 0.718) | 0.560 (0.451, 0.669) |
| Binary analysis using 10 as cut-off (0%–10% vs >10%) | Kappa coefficient | 0.478 (0.302, 0.654) | 0.576 (0.459, 0.693) | 0.712 (0.566, 0.857) | 0.465 (0.350, 0.580) |