Morphological differences between residual childhood hip dysplasia with previous osteotomy and adolescent-onset hip dysplasia

Table 2 Intraclass correlation coefficient values for each radiological measurement

category	parameters	intra-rater ICCs (95% CI)	inter-rater ICCs (95% CI)
Acetabular dysplasia and lateral subluxation	LCEA	0.993 (0.984, 0.997)	0.987 (0.984, 0.997)
	ACEA	0.985 (0.968, 0.993)	0.989 (0.977, 0.995)
	Sharp angle	0.985 (0.968, 0.993)	0.979 (0.954, 0.990)
	Tönnis angle	0.995 (0.990, 0.998)	0.984 (0.963, 0.993)
	ADR	0.982 (0.960, 0.991)	0.965 (0.925, 0.984)
	AHI	0.995 (0.988, 0.998)	0.847 (0.631, 0.933)
	HLI	0.979 (0.954, 0.990)	0.945 (0.880, 0.975)
Acetabular version and axial osseous support	AASA	0.993 (0.985, 0.997)	0.989 (0.977, 0.995)
	PASA	0.991 (0.981, 0.996)	0.983 (0.964, 0.992)
	Acetabular version	0.999 (0.997, 0.999)	0.997 (0.994, 0.999)
coxa valga and femoral anteversion	NSA	0.981 (0.959, 0.991)	0.934 (0.858, 0.969)
coxa valga and femoral anteversion	FAV	0.998 (0.996, 0.999)	0.990 (0.979, 0.996)

Data are reported as interobserver and intraobserver correlation coefficient with 95% confidence interval; LCEA = lateral center-edge angle, ACEA = anterior center-edge angle, AI = acetabular index, ADR = acetabular depth ratio, AHI = acetabular head index, HLI = head lateralization index, AASA = anterior acetabular sector angle, PASA = posterior acetabular sector angle, FNSA = femoral neck shaft angle, FNA = femoral neck anteversion
Data are reported as interobserver and intraobserver correlation coefficient with 95% CI

ISSN: 1749-799X