Table 3 Overall univariate and multivariate survival analysis

Age (< 72 years versus ≥ 72 years)

0.03

0.003

2.38

1.339 to 4.224

Pre-operative radiotherapy

0.26

-

-

-

Anastomotic leak

0.23

-

-

-

Gender (Male versus female)

0.33

-

-

-

Site of tumour (Rectal versus colonic)

0.87

-

-

-

Emergency surgery

<0.0001

0.004

2.35

1.312 to 4.205

Atrial fibrillation

0.04

0.06

2.21

0.979 to 4.985

Dukes' stage (A, B, C, D)

<0.0001

<0.0001

Dukes A 0.09

0.032 to 0.267

Dukes B 9.13

4.343 to 19.206

Dukes C 0.15

0.073 to 0.312

Dukes D 1

Reference