Table III.

Univariate analysis of overall survival for 101 patients.

Variable	Hazard ratio (95% confidence interval)	P-value
Sex		0.17
Male	Ref.
Female	1.547 (0.832–2.875)
Age (years)	1.012 (0.985–1.039)	0.39
Location		0.41
Right-sided	Ref.
Left-sided	0.758 (0.393–1.462)
Metastasis		0.64
Hepatic	Ref.
Extrahepatic	1.194 (0.569–2.507)
Synchronous metastasis		0.16
Yes	Ref.
No	0.633 (0.336–1.195)
Targeted drug		0.85
No	Ref.
Yes	0.937 (0.479–1.834)
Neoadjuvant therapy		0.78
No	Ref.
Yes	1.101 (0.569–2.129)
KRAS status		0.04a
Wt	Ref.
Mutant	1.884 (1.026–3.462)
Codon 12 status		<0.01
Wt	Ref.
Mutant	2.528 (1.369–4.668)
Codon 13 status		0.49
Wt	Ref.
Mutant	0.657 (0.202–2.135)

^aP<0.05. Ref., reference; wt, wild-type.