Table 4 Results of the measurement of intra- and interobserver concordance based on the Wiberg classification of the patella
Wiberg 1 (n = 8) | Wiberg 2 (n = 74) | Wiberg 3 (n = 18) | ||||
|---|---|---|---|---|---|---|
ICC | CI 95% | ICC | CI 95% | ICC | CI 95% | |
Intraobserver concordance | ||||||
Obs. 1 | 0.812 | − 1.961–0.990 | 0.954 | 0.912–0.979 | 0.686 | 0.380–0.937 |
Obs. 2 | 0.972 | 0.512–0.997 | 0.952 | 0.894–0.971 | 0.917 | 0.635–0.987 |
Obs. 3 | 0.890 | − 0.684–0.932 | 0.937 | 0.890–0.972 | 0.759 | 0.020–0.953 |
Interobserver concordance | ||||||
Obs. 1/Obs. 2 | 0.806 | 0.028–0.961 | 0.848 | 0.742–0.914 | 0.285 | (−0.918 to 0.738) |
Obs. 1/Obs. 3 | 0.752 | 0.159–0.941 | 0.891 | 0.817–0.943 | 0.532 | (−0.268 to 0.819) |
Obs. 2/Obs. 3 | 0.905 | 0.517–0.975 | 0.942 | 0.902–0.958 | 0.608 | (0.222–0.897) |