Table 2 Multivariate Cox regression analysis for independent prognosis factors

TBIL(≥157.4umol/L)

1.334

0.868

2.051

0.189

AST(≥85.0 IU/L)

1.508

1.014

2.243

0.042*

CA19–9(≥1000.0 U/mL)

1.975

1.215

3.210

0.006*

Vascular resection

3.166

1.312

7.638

0.010*

Perineural invasion

1.835

0.881

3.823

0.105

Resection margin status

1.486

0.854

2.585

0.161

Postoperative complication

1.732

0.959

3.126

0.068

Pathological differentiation

0.003*

 Well

Ref.

–

–

–

 Moderate

1.721

0.760

3.897

0.193

 Poor

3.591

1.486

8.675

0.005*

N staging

0.605

 N0

Ref.

–

–

–

 N1

1.256

0.791

1.995

0.335

 N2

1.166

0.568

2.396

0.676