Table 3.

Distribution of the 5 pre-surgery EQ-5D dimensions in total and according to comorbidity group

Dimensions	All THA	Comorbidity burden			p-valuea
	patients	No	Low	High
	n %	n %	n %	n %
Mobility
No problems	380 26	287 27	79 22	14 23
Some problems	1,083 74	761 72	274 78	48 77	0.07
Extreme problems	3 < 1	3 < 1	0 –	0 –
Self-care
No problems	1,090 75	791 76	253 73	46 75
Some problems	356 24	249 24	93 27	14 23	0.3
Extreme problems	7 < 1	4 < 1	2 < 1	1 2
Usual activities
No problems	318 22	238 23	73 21	7 11
Some problems	997 68	772 69	232 66	43 69	< 0.001
Extreme problems	141 10	85 8	44 13	12 20
Pain/discomfort
No problems	29 2	21 2	7 2	1 2
Some problems	1,112 77	833 80	240 70	39 64	< 0.001
Extreme problems	301 21	184 18	96 27	21 34
Anxiety/depression
No problems	1,141 79	842 82	259 75	40 67
Some problems	281 20	177 17	85 24	19 32	< 0.001
Extreme problems	18 1	14 1	3 1	1 1

^aP-values are derived from Spearman’s rank correlation.