Table 2.
Intra-observer reliability of the investigated parameters
| Intra-observer | ICC | 95% IC |
|---|---|---|
| TDI1 | 0.792 | 0.717–0.849 |
| TDI2 | 0.818 | 0.749–0.869 |
| TDI3 | 0.532 | 0.394–0.646 |
| TDI4 | 0.833 | 0.758–0.884 |
| ACI1 | 0.717 | 0.620–0.793 |
| ACI2 | 0.807 | 0.737–0.861 |
| ACI3 | 0.620 | 0.499–0.716 |
| ACI4 | 0.841 | 0.776–0.888 |
| PCI1 | 0.597 | 0.471–0.699 |
| PCI2 | 0.899 | 0.860–0.928 |
| PCI3 | 0.487 | 0.343–0.609 |
| PCI4 | 0.782 | 0.703–0.841 |
| RCA1 | 0.630 | 0.512–0.724 |
| RCA2 | 0.933 | 0.907–0.953 |
| RCA3 | 0.613 | 0.491–0.711 |
| RCA4 | 0.795 | 0.720–0.851 |
| OCA1 | 0.712 | 0.612–0.789 |
| OCA2 | 0.911 | 0.876–0.937 |
| OCA3 | 0.867 | 0.816–0.905 |
| OCA4 | 0.943 | 0.907–0.963 |
Observers: two dedicated musculoskeletal radiologists (Examiner 1 and Examiner 2) and two orthopaedic surgeons (Examiner 3 and Examiner 4)