Table 1.

Correlations – short- vs. long-leg X-rays.

Measure	Intra-class correlation coefficient		Bland–Altman method for limits of agreement
	ICC (95% CI)	P	Mean diff. (SD)	Repeatability coefficient	Limits of agreement
Tibia	0.609 (0.344, 0.762)	<0.001	0.8 (1.8)	3.5	−2.7, 4.3
Femur	0.677 (0.490, 0.796)	<0.001	0.5 (2.1)	4.1	−3.6, 4.6
FS-TS angle	0.612 (0.386, 0.754)	<0.001	−0.8 (2.8)	5.4	−6.3, 4.6
MA vs. SL-FS-TS	0.233 (−0.160, 0.556)	<0.001	5.6 (2.9)	5.7	−0.1, 11.3
MA vs. SL-FS-TS + 4 degrees	0.526 (0.197, 0.714)	<0.001	1.6 (2.9)	5.7	−4.1, 7.3
MA vs. SL-FS-TS + 5 degrees	0.583 (0.344, 0.735)	<0.001	0.6 (2.9)	5.7	−5.1, 6.3
MA vs. SL-FS-TS + 6 degrees	0.588 (0.350, 0.739)	<0.001	−0.4 (2.9)	5.7	−6.1, 5.3