Interreader reliability of magnetic resonance imaging features in the first exercise (6 readers).
| Median (IQR) | PEA, % | PCA, % | AvmICC (95% CI) | |
|---|---|---|---|---|
| Synovitis | 4 (4, 6) | 28.1 | 70.3 | 0.34 (−0.14, 0.79) |
| Erosive damage | 4 (2.5, 6) | 37.5 | 65.6 | 0.83 (0.57, 0.96) |
| Cysts | 2 (1, 4) | 31.3 | 82.8 | 0.64 (0.21, 0.91) |
| Osteophytes | 10 (5.5, 11) | 6.3 | 67.2 | 0.88 (0.68, 0.97) |
| Cartilge space loss | 9 (6, 11) | 15.6 | 62.5 | 0.88 (0.65, 0.97) |
| Malalignment | 3 (2, 4) | 39.1 | 84.4 | 0.75 (0.39, 0.94) |
| Bone marrow lesions | 2 (1, 3) | 43.8 | 81.3 | 0.94 (0.84, 0.99) |
IQR: interquartile range; PEA: percentage exact agreement; PCA: percentage close agreement; AvmICC: average measure intraclass correlation coefficients.