Table 1.
Interreader Agreement of Feature Detection
| Grading Parameter | n | κ Coefficient | 95% CI |
|---|---|---|---|
| Drusen | 85 | 0.367 | 0.292–0.443 |
| Drusen_def. | 64 | 0.613 | 0.537–0.689 |
| EZ loss | 108 | 0.260 | 0.185–0.336 |
| HRF | 71 | 0.422 | 0.246–0.497 |
| HT | 29 | 0.746 | 0.671–0.822 |
| IRF | 50 | 0.621 | 0.545–0.696 |
| OPL descent | 20 | 0.611 | 0.536–0.687 |
| PED | 77 | 0.598 | 0.522–0.674 |
| RPE loss | 76 | 0.160 | 0.085–0.236 |
| SRF | 45 | 0.823 | 0.747–0.898 |
| SRHM | 51 | 0.357 | 0.282–0.433 |
n = overall number of B-scans annotated with the respective feature by at least one reader. CI, confidence interval; Drusen_def., drusen with a minimum size of 1558.6 µm² in the respective B-scan.