Table 4.

Multivariate analysis of survival for middle third gastric carcinoma patients

Variables	Risk ratio	95%CI	P value
Age (< 65 vs ≥ 65)	1.78	1.24-2.55	0.002
Tumor size (mm) (< 50 vs ≥ 50)	1.51	1.03-2.21	0.036
Serosal invasion (negative vs positive)	2.46	1.45-4.15	0.001
Lymph node metastasis (negative vs positive)	2.48	1.59-3.87	0.000
Curability (curative vs non-curative)	3.46	2.29-5.23	< 0.001