Level of agreement in predicting ultimate management
| Predictors | Kappa coefficient (95% CI) | Interpretation of level of agreement |
| Final radiographic report | 0.62 (0.30 to 0.94) | Good |
| Clinicians’ predictions on the presence of fracture | 0.67 (0.36 to 0.98) | Good |
| Clinicians’ predictions of ultimate management | 0.88 (0.64 to 1) | Excellent |
Guidelines for interpreting agreement by κ coefficient values have created arbitrary divisions. We have chosen, considering the subjective nature of our study, higher agreement levels: poor (κ≤0.40), fair (κ=0.41–0.60), good (κ=0.61–0.75) and excellent (κ>0.75).14