Incidence of portal vein thrombosis after splenectomy and its influence on transjugular intrahepatic portosystemic shunt stent patency

Table 3 Clinical characteristics of the patients in stent primary patency rate

Time	Group	Patency		Patency rate, %	χ2	P value
		Yes	Not
3 mo	A	249	6	97.6	15.18	0.006
	B	127	17	88.1
6 mo	A	226	29	88.6	10.34	0.011
	B	109	35	75.7
9 mo	A	215	40	84.3	14.24	0.023
	B	98	46	68.1
12 mo	A	177	78	69.4	25.93	0.032
	B	65	79	45.1
2 yr	A	130	125	51.0	22.75	0.037
	B	38	106	26.4
3 yr	A	78	177	30.6	21.39	0.028
	B	18	126	12.5
		Median stent patency in mo	Four quantile spacing in mo
Total	A	12	(10, 14)				0.001