Table 1.

Baseline characteristics of patients.

Patients	(n = 278)
Sex
Male	108 (38.9%)
Female	170 (61.1%)
Median age
	63 years, range 37–85
Primary tumor site
iCCA	116 (41.7%)
eCCA	126 (45.4%)
GBC	36 (12.9%)
Grading
G1	24 (8.6%)
G2	136 (48.9%)
G3	102 (36.8%)
Not available	16 (5.7%)
Vascular infiltration
Yes	96 (24.8%)
No	39 (14.0%)
Not available	143 (51.4%)

Abbreviations: eCCA: extrahepatic cholangiocarcinoma; eCCA: extrahepatic cholangiocarcinoma; GBC: gallbladder cancer.