Table 2 Multivariate analysis of prognostic factors for overall survival of gastric cancer patients

Sex

0.671

1.106

0.694-1.765

Male versus female

Age

0.179

1.148

0.938-1.405

<50

50-59

60-69

> = 70

Tumor location

0.545

0.864

0.538-1.387

Cardia vs. Non-cardia

Differentiation

0.301

0.751

0.437-1.292

Well versus moderately + poorly

Lymph node metastasis

0.006

1.841

1.196-2.835

N0 + N1 versus N2 + N3

Depth of tumor invasion

0.1

1.756

0.897-3.435

T1 + T2 versus T3 + T4

Liver metastasis

0

3.461

2.002-5.983

Negative versus Positive

Vascular invasion

0.107

1.452

0.922-2.285

Negative versus Positive

S100A9-positive inflammatory cell count

0.046

0.643

0.417-0.991

<200 versus > = 200