Table 1 Interpretation of kappa
From: Femoral fracture classification in the Swedish Fracture Register – a validity study
Kappa statistic | Strength of agreement |
|---|---|
< 0 | Poor |
0–0.20 | Slight |
0.21–0.40 | Fair |
0.41–0.60 | Moderate |
0.61–0.80 | Substantial |
0.81–1.00 | Almost perfect |