Efficacy of transjugular intrahepatic portosystemic shunts in treating cirrhotic esophageal-gastric variceal bleeding

Table 2 Comparison of variceal status between the two groups [n (%)]

Item		Study group (n = 50)	Control group (n = 42)	Z	P value
Prior to surgery	Absence	0 (0.00)	0 (0.00)	0.533	0.465
	Mild	9 (18.00)	5 (11.90)
	Moderate	20 (40.00)	17 (40.48)
	Severe	21 (42.00)	20 (47.62)
One month postoperatively	Absence	19 (38.00)	4 (9.52)	5.269	0.022
	Mild	16 (32.00)	21 (50.00)
	Moderate	9 (18.00)	10 (23.81)
	Severe	6 (12.00)a	7 (16.67)a

^aP < 0.05 compared to preoperative values.