Table 4.

The interreader reliability of change scores of the OMERACT hand OA MRI score.

AvmICC (95% CI)SDCPEAPCA
Synovitis−0.07 (−0.89, 0.49)3.0520.666.3
Erosive damage0.74 (0.47, 0.89)2.0844.476.3
Cysts0.59 (0.18, 0.82)2.9828.867.5
Osteophytes0.53 (0.08, 0.79)1.9746.980.0
Cartilage space loss0.08 (−1.02, 0.62)2.7137.582.5
Malalignment0.39 (−0.07, 0.71)1.0863.893.1
Bone marrow lesions0.76 (0.51, 0.90)2.5638.866.9
  • OA: osteoarthritis; MRI: magnetic resonance imaging; AvmICC: average measure intraclass correlation coefficients; SDC: smallest detectable change; PEA: percentage exact agreement (joint level); PCA: percentage close agreement (joint level).