Table 4.

Multilinear regression analysis for evaluating the association between hip abductor strength and clinical and radiological parameters on the affected side

		Regression coefficient	Standardized regression coefficient	P value	Variance inflation factor
Forced Entry Method	Muscle volume of the GMED	0.28	0.52	0.07	6.63
	Adjusted CT density of the GMED	0.93	0.32	0.18	4.95
	CSA of the GMED	−0.003	−0.05	0.85	5.96
	CT density of the GMED	0.37	0.13	0.59	4.8
	Age	0.37	0.14	0.24	1.16
	Sex	−11.1	−0.15	0.35	2.44
	BMI	0.95	0.13	0.34	1.48
	LLD	0.71	0.28	0.09	2.31
	Femoral offset	0.42	0.08	0.55	1.49
	KL grade	−1.91	−0.04	0.77	1.46
Final model	Muscle volume of the GMED	0.3	.54	<0.001	1.29
	Adjusted CT density of the GMED	1.13	.39	0.005	1.65
	LLD	0.81	.32	0.014	1.43

GMED gluteus medius, CSA cross-sectional area, RD radiological density, BMI body mass index, LLD leg length discrepancy, KL Kellgren and Lawrence