Table 3 Inter-reader reliability*
Reader 1Reader 2Reader 3Reader 4Reader 5Reader 6
Sensitivity (%)83.488.264.782.458.817.7
Specificity (%)79.063.284.257.973.794.7
Correctly assigned (%)78.473.073.067.664.956.8
ICC reader 10.830.740.740.840.41
ICC reader 20.830.620.650.790.32
ICC reader 30.740.620.580.710.49
ICC reader 40.740.650.580.630.25
ICC reader 50.840.790.710.630.52
ICC reader 60.410.320.490.250.52
  • *Inter-reader reliability was measured in 36 cases (19 healthy controls and 17 patients with SpA)

  • ICC, two-way mixed effect model (absolute agreement) single measure intraclass correlation coefficient, p<0.001; SpA, spondyloarthropathy.