Table 3 Inter- and intra-observer agreement of the six methods used, before and after total knee arthroplasty
Pre-operation | Post-operation | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
IS | mIS | CD | BP | AP | jAP | JLH | IS | mIS | CD | BP | AP | jAP | JLH | |
Intra-observer agreement | ||||||||||||||
ICC | 0.92 | 0.78 | 0.73 | 0.79 | 0.85 | 0.83 | 0.80 | 0.92 | 0.71 | 0.87 | 0.87 | 0.87 | 0.87 | 0.92 |
95% confidence interval | 0.87–0.95 | 0.68–0.84 | 0.63–0.81 | 0.70–0.86 | 0.78–0.89 | 0.75–0.88 | 0.71–0.86 | 0.88–0.94 | 0.60–0.75 | 0.81–0.91 | 0.81–0.91 | 0.80–0.91 | 0.80–0.91 | 0.89–0.95 |
P value | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
Sample size | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
Inter-observer agreement | ||||||||||||||
ICC | 0.85 | 0.69 | 0.68 | 0.81 | 0.83 | 0.82 | 0.88 | 0.86 | 0.54 | 0.86 | 0.83 | 0.83 | 0.86 | 0.95 |
95% confidence interval | 0.79–0.90 | 0.58–0.78 | 0.56–0.77 | 0.73–0.87 | 0.75–0.88 | 0.74–0.87 | 0.82–0.91 | 0.76–0.91 | 0.37–0.67 | 0.81–0.90 | 0.76–0.88 | 0.76–0.88 | 0.80–0.90 | 0.93–0.97 |
P value | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
Sample size | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 |