Should additional domains be added to the EQ-5D health-related quality of life instrument for community-based studies? An analytical descriptive study

Table 5 Forward stepwise multiple regression steps to enter

	Step + in/-out	Multiple R-square	R-square change	F - to entr/rem	p-value	Origin
Mobility Some	1	0.30	0.30	129	0.000	EQ-5D-3L
Pain/Discomfort Severe	2	0.43	0.13	72	0.000	EQ-5D-3L
Concentration Severe	3	0.47	0.04	22	0.000	WHOQOL^a
Concentration Some	4	0.51	0.04	24	0.000	WHOQOL
Pain/Discomfort Some	5	0.53	0.02	12	0.001	EQ-5D-3L
Anxiety/Depression Severe	6	0.54	0.02	11	0.001	EQ-5D-3L
Anxiety/Depression Some	7	0.55	0.01	7	0.007	EQ-5D-3L
Bodily Appearance Some	8	0.56	0.01	7	0.011	WHOQOL^a
Sleep Severe	9	0.57	0.01	5	0.021	WHOQOL^a
Energy Some	10	0.58	0.01	5	0.029	WHOQOL^a
Mobility Severe	11	0.59	0.01	6	0.016	EQ-5D-3L
Sex Life Some	12	0.59	0.00	3	0.090	WHOQOL^a
Sex Life Severe	13	0.59	0.00	2	0.204	WHOQOL^a
Usual Activities Some	14	0.60	0.00	1	0.226	EQ-5D-3L

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