Table 2 Multivariate analyses of clinicopathological factors of patients with pancreatic cancer

Age

 ≥ 75 vs. < 75 Years

1.518

0.665–3.466

0.32

1.607

0.646–3.996

0.31

Sex

Male vs. female

0.653

0.301–1.413

0.28

0.682

0.294–1.583

0.37

Histology

Well vs. others

0.890

0.500–1.584

0.69

0.876

0.465–1.649

0.68

Tumor location

Head vs. others

1.089

0.096–12.423

0.95

1.784

0.145–21.936

0.65

Operative procedure

PD vs. DP/TP

1.419

0.136–14.841

0.77

1.263

0.112–14.267

0.85

Tumor size

 ≥ 3 cm vs. < 3 cm

1.741

0.885–3.426

0.11

1.947

0.928–4.084

0.078

T category

T3 vs. T1/2

1.385

0.406–4.170

0.56

0.902

0.288–2.824

0.86

Lymph node metastasis

Present vs. absent

3.261

1.492–7.127

0.003

2.721

1.173–6.308

0.020

Lymphatic invasion

ly2/3 vs. ly0/1

1.975

1.009–3.868

0.047

1.749

0.837–3.651

0.14

Vascular invasion

v2/3 vs. v0/1

1.913

0.930–3.934

0.078

2.796

1.253–6.308

0.012

Intrapancreatic nerve invasion

ne2/3 vs. ne0/1

1.506

0.700–3.237

0.30

1.592

0.694–3.650

0.27

Residual tumor

R1 vs. R0

5.165

1.722–15.493

0.003

8.496

2.620–27.549

 < 0.001

Neoadjuvant chemotherapy

Present vs. absent

0.559

0.230–1.358

0.20

0.500

0.188–1.331

0.165

Adjuvant chemotherapy

Present vs. absent

0.346

0.153–0.783

0.011

0.318

0.129–0.783

0.013

CA19-9

 ≥ 66.3 vs. < 66.3 U/ml

2.452

1.159–5.187

0.019

1.928

1.061–4.319

0.044

MPV

 < 8.65 vs. ≥ 8.65 fL

2.247

1.007–5.012

0.048

3.578

1.411–9.074

0.007