Table 1. Characteristics of the patients enrolled in a study of the sensitivity of bile cytology in the diagnosis of bile duct cancer.

Diagnosis	Patients, n	Male patients, n	Median age (range), y	Median follow-up (range), mo
Bile duct cancer	76	62	70 (48 – 83)	-
Hilar bile duct cancer	41	34	70 (56 – 83)	-
Common bile duct cancer	35	28	71 (48 – 80)	-
Benign bile duct stricture	50	42	67 (45 – 84)	40 (14 – 86)
AIP-SC	33	28	65 (45 – 84)	43 (14 – 77)
Choledocholithiasis	11	9	67 (61 – 81)	36 (20 – 86)
Sclerosing cholangitis	4	3	75 (71 – 82)	19 (14 – 59)
Stricture of hepaticojejunostomy	2	2	72 (66 – 78)	54 (51 – 57)

AIP-SC, sclerosing cholangitis associated with autoimmune pancreatitis.