Table 3.

Univariate and multivariate analysis of prognostic factors of gastric cancer

Clinical factors	Single argument	Multiple variables
	P value	P value	Risk Ratio	95% CI
Age	0.43	-	-	-
Gender	0.52	-	-	-
Depth of invasion	<0.01	0.26	2.43	0.55-11.47
Tumor volume	<0.01	0.33	1.55	0.51-4.04
Lymphatic metastasis	<0.01	0.04	5.00	1.15-21.37
Lymphatic invasion	<0.05	0.28	0.31	0.06-2.27
Tissue typing	<0.05	0.19	1.64	0.77-3.11
Nrf2	<0.05	0.44	1.39	0.45-2.67