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Re-test and examiner vs participant agreement of dichotomous grading of hallux valgus using the Manchester scale.
| Baseline vs follow-up (re-test reliability) |
Examiner vs participant (validity) |
|||
|---|---|---|---|---|
| κ (95% CI) | % agreement | κ (95% CI) | % agreement | |
| Left foot | 0.89 (0.81 to 0.98) | 95.7 | 0.64 (0.49 to 0.78) | 85.5 |
| Right foot | 0.87 (0.79 to 0.96) | 94.2 | 0.76 (0.64 to 0.87) | 89.1 |
| Both feet | 0.80 (0.72 to 0.87) | 90.9 | 0.70 (0.61 to 0.79) | 87.3 |
κ = kappa statistic, CI = confidence interval.
