Table 2.

Primary patency for SMART stent placement in AVF and AVG cases. There was no significant difference in primary patency rates between AVF and AVG cases, but patency in AVG showed inferior to AVF.

	All	AVF	AVG	P value
n	50	25	25
Primary patency (Days)	140 ± 105	168 ± 118	110 ± 78.9	0.0051
(range)	(17–401)	(17–401)	(38–378)
Primary patency (%)
3 months	79	80.3	75.6	0.1010
6 months	51.3	64.9	28.3
12 months	27.1	32.3	18.9