Table 4. Multivariate analysis of Disease-free survival and Overall Survival.

Variables	Hazard Ratio	95%CI		Pa
		LL	UL
Disease-free survival
Age
<65	Reference
≥65	1.90	1.27	2.83	.002b
TNM stage
IB	Reference
II	1.82	0.76	4.37	.180
III	3.15	1.28	7.72	.012b
N stage
N0	Reference
N1	0.90	0.48	1.71	.750
N2	1.52	0.81	2.88	.194
N3	2.36	1.28	4.36	.006b
Overall Survival
Regimens of therapy
monotherapy	Reference
two-drug regimens	0.55	0.35	0.85	.008b
Age
<65	Reference
≥65	2.14	1.39	3.28	.001b
Location of tumor
cardia	Reference
corpus	0.45	0.20	1.02	.056
antrum	0.54	0.34	0.86	.009b
Type of resection
subtotal gastrectomy	Reference
total gastrectomy	2.39	1.31	4.39	.005b
N stage
N0	Reference
N1	0.86	0.43	1.72	.669
N2	2.52	1.38	4.59	.003b
N3	4.45	2.61	7.59	.000b

Abbreviations: N stage: Regional lymph nodes classification; LL =lower limit; UL=upper limit.

^aCox regression analysis.

^bStatistically significance.