Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 1 Level of agreement among observers for the Neer classification after both review sessions
Neer | Observers | % agreement | Kappa (95% CI) | Judgement |
|---|---|---|---|---|
First reading | 1 versus 2 | 76.7 | 0.656 (0.550–0.763) | Substantial agreement |
1 versus 3 | 86.2 | 0.806 (0.722–0.891) | Almost perfect agreement | |
2 versus 3 | 75.9 | 0.653 (0.547–0.759) | Substantial agreement | |
Mean | 79.6 | 0.705 (0.550–0.891) | Substantial agreement | |
Second reading | 1 versus 2 | 69 | 0.556 (0.447–0.665) | Moderate agreement |
1 versus 3 | 81 | 0.742 (0.649–0.834) | Substantial agreement | |
2 versus 3 | 72.4 | 0.607 (0.498–0.717) | Substantial agreement | |
Mean | 74.1 | 0.635 (0.447–0.834) | Substantial agreement |