Table 1.

Baseline characteristics of study patients.

	Biliary Disease (n = 73)
Age (range), years	72 (42–88)
Sex, male/female	49/24
Location of stricture (perihilar/distal) Malignant Benign	27/46 16/21 11/25
Length of stricture, mm	16.9 (1.2–46.0)
Cholangitis (with/without)	6/67
Total bilirubin, mg/dL	1.2 (0.3–26.2)
Tumor marker CEA, ng/mL CA19-9, U/mL	2.6 (0.8–1549.1) 37.3 (0.8–11985)
Malignant Cholangiocarcinoma	37 37
Benign Benign biliary stricture IgG4-associated sclerosing cholangitis Pancreaticobiliary maljunction Intraductal papillary neoplasm of bile duct Bile duct adenoma	36 25 4 4 2 1

Values are presented as number or median (range).