Table 5 Univariable subdistribution regression for recurrence under the competing risk of death

Age, per 10-yr increase from baseline 60 years

0.84 (0.63, 1.12)

0.23

Female

1.45 (0.77, 2.71)

0.249

Rectum (v. colon)

1.17 (0.52, 2.62)

0.138

Sigmoid/rectosigmoid (v. colon)

2.01(0.94, 5.56)

–

Mucinous (v. adenocarcinoma)

2.03 (0.81, 5.12)

0.132

Moderate grade (v. low grade)

1.31 (0.636, 2.7)

0.757

High grade (v. low grade)

1.12 (0.81, 5.12)

–

T3 stage v. T1/T2 stage

2.46 (1.04, 5.81)

 < 0.001

T4 stage v. T1/T2 stage

11.93 (3.74, 37.99)

–

N1 stage v. N0 stage

2.02 (0.85, 4.8)

 < 0.001

N2 stage v. N0 stage

10.58 (5.17, 21.65)

–

Vascular invasion

4.27 (2.22, 8.21)

 < 0.001

Perineural invasion

1.82 (0.95, 3.49)

0.069

Positive margins

3.63 (1.68, 7.84)

0.001

Nodes examined (> 12)

1.07 (0.53, 2.17)

0.854

Post-operative chemotherapy or radiation

3.85 (1.99, 7.46)

 < 0.001