Table 4 Univariate and multivariate analyses of risk factors for recurrence within 6 months after pancreatic resection with preoperative therapy

Preoperative CA19-9

< 175.8

1.637

0.93 – 2.88

0.087

≥ 175.8

mGPS

0

1.475

0.98 – 2.22

0.061

1,2

Tumor size

< 31

1.845

1.11 – 3.08

0.01

1.482

0.85 – 2.58

0.402

≥ 31

Complication

Yes

1.218

0.686 – 2.16

0.501

No

Histology

tub

1.395

0.765 – 2.55

0.278

por, others

Resection margin

Positive

1.365

0.737 – 2.53

0.322

Negative

Peritoneal cytology

Positive

4.921

2.3 – 10.5

<0.001

2.77

1.17 – 6.55

0.02

Negative

N factor

0

1.805

1.28 – 2.55

<0.001

1.52

1.04 – 2.23

0.03

1,2

Adjuvant chemotherapy

No

3.266

1.4 – 7.62

0.006

2.509

1.00 – 6.29

0.049

Yes