Table 1 Validity data for the self-reporting line drawing instruments
Sensitivity (95%CI) | Specificity (95%CI) | Likelihood ratio (95%CI) | Accuracy (95%CI) | |
|---|---|---|---|---|
Knee | ||||
Varus | 0.80 (0.45, 1.15) | 0.98 (0.95, 1.02) | 45.60 (6.22, 334.11) | 0.97 (0.92, 1.01) |
Valgus | 0.71 (0.48, 0.95) | 0.96 (0.92, 1.01) | 20.00 (4.93, 81.16) | 0.91 (0.85, 0.98) |
Overall | 0.74 (0.54, 0.93) | 0.97 (0.94, 1.00) | 21.31 (-15.81, 58.44) | 0.95 (0.91, 0.99) |
Foot | ||||
Inwards | 0.75 (0.33, 1.17) | 0.98 (0.93, 1.02) | 33.00 (4.38, 248.40) | 0.96 (0.90, 1.02) |
Outwards | 0.93 (0.84, 1.02) | 0.92 (0.84, 0.99) | 10.97 (4.27, 28.14) | 0.92 (0.86, 0.98) |
Overall | 0.92 (0.83, 1.01) | 0.96 (0.93, 1.00) | 11.18 (-0.70, 23.06) | 0.94 (0.90, 0.98) |