Table 3 Univariate and multivariate analyses of risk factors of 2-year survival

Serum PRTN3 (ng/ml)

>21.6

3.095

1.331

7.197

0.009

4.531

1.569

13.085

0.005

Age (years)

>65

0.786

0.387

1.595

0.505

Sex

Male/female

1.918

0.919

4.005

0.083

1.890

0.745

4.792

0.180

WBC count (/µl)

>8600

1.018

0.418

2.483

0.968

Neutrophil count (/µl)

>4920

1.520

0.751

3.075

0.245

CEA level (ng/ml)

>6.0

4.093

0.557

30.07

0.166

CA19-9 level (U/ml)

>37

1.146

0.693

3.062

0.321

Tumor location

Right/left

1.228

0.401

1.653

0.570

T category

1.001

0.546

1.925

0.997

N category

1.663

1.160

2.406

0.006

1.572

1.056

2.339

0.026

Metastasis

a/b/c

1.724

1.016

2.814

0.044

1.633

0.903

2.955

0.105

Operation (radical resection)

R0, 1/R2, unresected

0.241

0.103

0.561

0.001

0.133

0.046

0.383

<0.001