Table 4.

Multilinear regression analysis for evaluating the association between muscle atrophy/fatty degeneration and health-related quality of life

		Muscle group	β	95%CI	p value
WOMAC	Stiff	Hamstrings fatty degeneration	0.40	0.04–0.26	0.007
	Function	Iliopsoas fatty degeneration	0.43	0.42–1.98	0.003
	Total	Iliopsoas fatty degeneration	0.44	0.54–2.41	0.003
JHEQ	Movement	Hip adductors fatty degeneration	− 0.45	− 0.75 to − 0.18	0.002

WOMAC Western Ontario and McMaster Universities index, JHEQ Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire, β standard regression coefficient, CI confidence interval