Table 2. Inter-observer reliability of radiographic measurements.

Parameters	Intra-observer reliability, intraclass correlation	95% CI	Inter-observer reliability, intraclass correlation	95% CI
LOS	0.827	0.753 to 0.899	0.811	0.723 to 0.867
LLL	0.838	0.764 to 0.913	0.816	0.729 to 0.868
HOP	0.932	0.896 to 0.976	0.917	0.841 to 0.978

CI, confidence interval; LOS, length of spine; LLL, length of lower limbs; HOP, height of pelvis.