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Table 2 Weighted kappa and CI for inter- and intra-reader reliability

From: Changes in bone marrow lesions in response to weight-loss in obese knee osteoarthritis patients: a prospective cohort study

  Inter-reader1 Intra-reader1
Cartilage I 0.59 (0.31;0.87) 0.81 (0.71;0.91)
Cartilage II 0.71 (0.42;1.00) 0.75 (0.62;0.88)
Bone Marrow Lesions - -
Size score 0.65 (0.47;0.83) 0.66 (0.56;0.76)
Percentage BML score 0.72 (0.50;0.94) 0.76 (0.64;0.88)
Adjacency score 0.70 (0.48;0.92) 0.78 (0.66;0.90)
Osteophytes 0.71 (0.48;0.94) 0.81 (0.82;0.90)
Effusion 0.51 (0.21;0.81) 0.72 (0.61;0.83)
Synovitis (whole knee) 0.66 (0.42;0.90) 0.70 (0.60;0.80)
Synovitis (subscale) 0.61 (0.27;0.95) 0.58 (0.41;0.75)
Meniscal Extrusion 0.63 (0.38;0.88) 0.67 (0.55;0.79)
Meniscal Signal 0.80 (0.54;1.00) 0.80 (0.67;0.93)
Meniscal Tear 0.70 (0.38;1.00) 0.90 (0.80;1.00)
  1. 1 Validated on 20 patients consecutively selected according to protocol.