Table 3.

Mean percentage change from baseline in ZCQ symptom severity and physical function

	ZCQ symptom severity		ZCQ physical function
	N	Mean ± SD	N	Mean ± SD
Baseline	157	3.0 ± 0.61	155	2.5 ± 0.51
7 days post-procedure score	156	2.1 ± 0.53	155	2.3 ± 0.67
Percentage change from baseline	156	−27.4 % ± 21.7**	153	−5.5 % ± 33.7*
6 weeks post-procedure score	155	2.1 ± 0.62	152	1.8 ± 0.65
Percentage change from baseline	155	−29.7 % ± 23.4**	150	−27.1 % ± 28.2**
6 months post-procedure score	151	2.2 ± 0.74	149	1.8 ± 0.67
Percentage change from baseline	151	−26.8 % ± 24.3**	147	−26.6 % ± 29.5**
12 months post-procedure score	155	2.2 ± 0.85	155	1.9 ± 0.73
Percentage change from baseline	155	−26.7 % ± 25.8**	153	−25.3 % ± 27.7**

SD standard deviation, ZCQ Zurich Claudication Questionnaire

* Student’s t test p = 0.047; signed-rank test, p = 0.008

** Student’s t test, p < 0.001; signed-rank test, p < 0.001