Long-term outcomes of post-transplant biliary anastomotic strictures: Endoscopic therapy with plastic and metal stents

Table 1 Demographic and baseline characteristics

	Covered self-expandable metal stents (n = 84)	Multiple plastic stents (n = 20)	P value
Male:female	64:20	15:5	> 0.999
Age (years)
Median	61	64	0.882
Range	20-77	26-79
Etiology
HCV	26	6
HBV	6	2
HCV + HBV	2	0
Alcohol	25	4
Metabolic dysfunction-associated steatohepatitis	8	2
Autoimmune hepatitis	4	3
Cryptogenic	9	0
Wilson disease	0	0
Acute liver failure	2	2
Primary biliary cirrhosis	0	0
Primary sclerosing cholangitis	2	0
Budd-Chiari	1	0
Alpha-1 antitrypsin deficiency	2	0
Familial amyloidotic polyneuropathy	2	2
Hemochromatosis	0	1
Hyperoxaluria	0	0
Presence of hepatocellular carcinoma	32	6	0.499
Time from orthotopic liver transplantation to endoscopic retrograde cholangiopancreatography (days)
Median	153	77	0.111
Range	11-3.995	7-4.680

HCV: Hepatitis C virus.