Table 1 Weighted kappa values and 95% confidence intervals for inter- and intra-observer agreement of MRI for the three compartments of the knee joint.
weighted kappa values and 95% confidence intervals† | ||||
|---|---|---|---|---|
patellofemoral compartment | medial compartment | lateral compartment | all compartments | |
reader 1 vs. reader 2 | 0.51 (0.37-0.65) | 0.59 (0.47-0.71) | 0.75 (0.64-0.85) | 0.65 (0.58-0.72) |
AC vs. reader 1 | 0.52 (0.37-0.66) | 0.62 (0.48-0.75) | 0.65 (0.54-0.76) | 0.62 (0.55-0.69) |
AC vs. reader 2 | 0.32 (0.17-0.47) | 0.49 (0.35-0.62) | 0.57 (0.44-0.70) | 0.50 (0.42-0.58) |