Table 3: Observer agreement in the evaluations of SIJ abnormalities using MRI. Cohen's kappa values are shown with their 95% CIs.

Category Observed 95% CI
Bilateral Chronic 0.75 (0.2194 - 0.9868)
Lt Active 1 (0.3958 - 1)
Lt Chronic 0.9 (0.5412 - 0.9948)
Rt Active 0.8 (0.2988 - 0.9895)
Rt Chronic 1 (0.31 - 1)
Composite 0.9231 (0.734 - 0.9866)