. 2016 Aug 8;5(1):1278. doi: 10.1186/s40064-016-2949-z

Table 2.

EQ-5D-3L among patients and controls

	Patients (n = 254)	Controls (n = 122)	P^a (patients versus controls)
	Mean (SD)	Mean (SD)	P^a (patients versus controls)
EQ-5D index value	0.79 (0.20)	0.91 (0.12)	<0.001
EQ VAS	72 (19)	82 (15)	<0.001

EQ-5D dimension	Patients with problems^b	Controls with problems^b	P^c
EQ-5D dimension	n (%)	n (%)	P^c
Mobility	79 (31)	13 (11)	<0.001
Self-care	17 (7)	0 (0)	0.003
Usual activities	68 (27)	8 (7)	<0.001
Pain/discomfort	157 (62)	38 (31)	<0.001
Anxiety/depression	74 (29)	15 (12)	<0.001

PTS post-thrombotic syndrome, SD standard deviation

^aMan Whitney U test

^bIn the EQ-5D questionnaire, the outcome ‘extreme problems’ occurred very rarely, and this level was merged with the level ‘some problems’ for the statistical analyses

^cChi square test for independence