Table III.

Correlation between KRAS mutational status and survival.

A, KRAS mutation status in toto
		Confidence interval
Parameter	Odds Ratio	Lower	Upper	P-value
TTM
KRAS status	1.187	0.816	1.726	0.198
Female and KRAS status	0.799	0.444	1.439	0.254
Male and KRAS status	1.583	0.962	2.606	0.035
OS
KRAS status	1.286	0.874	1.903	0.107
Female and KRAS status	1.151	0.825	2.766	0.100
Male and KRAS status	1.141	0.679	1.935	0.345
B, KRAS codon-specific mutations
			Confidence interval
Parameter	P-value	Hazard ratio	Lower	Upper
TTM
Gender	0.011	0.728	0.569	0.931
Age at diagnosis	0.473	1.161	0.771	1.750
Codon 12 mutations	0.907	1.037	0.559	1.924
Codon 13 mutations	0.861	1.045	0.634	1.721
Other codon mutations	0.806	1.076	0.598	1.935

TTM, time to first metastasis; OS, overall survival.