Table 7. Multivariate analysis of patients by Cox model.

Variable	P value	RR	95% CI
Age	<0.001	1.327	1.170-1.505
Histological type	0.007	1.234	1.060-1.437
Vascular tumor emboli	0.005	1.225	1.065-1.409
Nervous invasion	0.149	1.108	0.964-1.273
Tumor location	0.081	0.944	0.885-1.007
Borrmann type	0.041	1.093	1.004-1.191
Tumor size	0.035	1.149	1.010-1.308
Pathological stage	<0.001	1.464	1.400-1.532
Family history of cancer*	0.033	0.836	0.708-0.986
Family history of gastric cancer*	0.309	0.891	0.714-1.113
Family history of other cancers*	0.073	0.817	0.655-1.019
P21	0.045	1.146	1.003-1.309
EGFR	0.183	1.091	0.960-1.240
Neu/Her-2	0.173	1.287	0.895-1.851

^*Only one parameter can be put into Cox proportional hazards model very time.