Prognostic factors in patients with advanced cholangiocarcinoma: Role of surgery, chemotherapy and body mass index

Table 2 Tumor location, size, grade, nodal and margin status and relation to survival in patients with cholangiocarcinoma

	n	Median survival (95% CI)	P
Location
Intrahepatic	10	6.23 (0.76-11.7)	0.68
Perihilar	18	11.47 (6.73-16.2)
Distal	21	9.17 (0.52-17.8)
Not available	6
Size
< 3 cm	19	3.47 (1.9-5.0)	0.31
≥ 3 cm	13	11 (4.13-17.87)
Not available	23	13
Grade
Poor	4	16.96 (8.9-25.0)	0.31
Moderate	15	11 (2.77-19.2)
Well	8	13 (0-31)
Missing	28
Margin status
Positive	7	9.9 (4.6-15.19)	0.90
Negative	14	14.3 (5.5-23.1)
Vascular invasion
Yes	7	22 (4.9-39.2)	0.78
No	14	10.2 (4.04-16.42)
Perineural involvement
Yes	10	6.2 (4.9-7.5)	0.66
No	13	11 (5.8-16.2)