TABLE 1.

Patient characteristics

		B2	B3	p‐Value
Gender	Male	60	47	0.723
	Female	32	22
Age (years, mean, range)		66.9 (32–90)	68.6 (32–87)	0.213
PS	0	25	28	0.935
	1	43	32
	2	17	8
	3	6	1
	4	1	0
Diagnosis	Pancreatic cancer	44	22	0.240
	Biliary tract cancer	14	28
	Gastroduodenal cancer	19	8
	Bile duct stone	3	1
	Malignant disease	6	3
	Benign disease	6	7
Site of obstruction	Distal bile duct	54	35	0.144
	Perihilar bile duct	35	30
	Anastomosis	1	2
	Ampulla of Vater	0	1
	No stenosis	2	1