Table 2 Prognostic factors for disease-free survival after colon cancer resection

ITC

No

Reference

0.043

Reference

0.024

Reference

0.005

Yes

2.82 (1.06–7.49)

3.59 (1.18–10.9)

4.73 (1.67–13.4)

Age

(years)

1.10 (1.03–1.17)

0.001

1.12 (1.03–1.22)

<0.001

1.13 (1.05–1.21)

<0.001

Gender

male

Reference

0.260

Reference

0.220

-

-

female

0.57 (0.21–1.55)

0.51 (0.17–1.53)

-

-

Tumor localisation

colonic

Reference

0.428

Reference

0.886

-

-

rectosigmoidal

0.64 (0.21–2.00)

0.91 (0.24–3.47)

-

-

AJCC stage

I

Reference

0.569

Reference

0.581

-

-

II

1.35 (0.47–3.84)

1.39 (0.43–4.52)

-

-

Grading

GI/GII

Reference

0.356

Reference

0.952

-

-

GIII

1.62 (0.57–4.62)

1.04 (0.28–3.84)

-

-

Lymphovascular

No

Reference

0.182

Reference

0.368

-

-

invasion

Yes

2.30 (0.74–7.12)

2.04 (0.45–9.31)

-

-

Preoperative CEA

<5 μg/l

Reference

0.304

Reference

0.302

-

-

levels

≥5 μg/l

0.49 (0.11–2.15)

0.42 (0.07–2.44)

-

-

TotalLNn

(n)

0.98 (0.94–1.02)

0.323

1.00 (0.95–1.05)

0.898

-

-

SLNn

(n)

1.00 (0.86–1.15)

0.954

1.02 (0.85–1.22)

0.850

-

-

Adjuvant

No

Reference

0.976

Reference

0.705

-

-

Chemotherapy

Yes

0.98 (0.22–4.33)

1.47 (0.21–10.4)

-

-