Table 4. Mean Patency Rate for Different Sites and Lesions^a.

	Mean Patency (m)		P Value
	Open-Cell Stent	Closed-Cell Stent
Lesion Site
Subclavian v	11.1 ± 1.66	4.9 ± 0.18	< 0.001b
Innominate v	11.1 ± 0.92	10.1 ± 1.5	0.146
Lesion Type
Occlusion	11.9 ± 1.59	8.9 ± 1.92	0.020b
Stenosis	10.5 ± 0.87	8.0 ± 1.11	0.042b
Thrombosis
(+)	11.4 ± 2.02	10.6 ± 6.53	0.153
(-)	10.9 ± 0.85	8.2 ± 0.99	0.006b
Overall	10.9 ± 0.798	8.5 ± 10.87	0.002b

Abbreviations: m, month; v, vein

^aValues expressed as means ± SD.

^bP value < 0.05