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Table 3 Cumulative incidence of local/distant metastasis by potential risk factors for patients with colorectal cancer after resection surgery

From: A competing risk analysis of colorectal cancer recurrence after curative surgery

Variable

Category

Cumulative incidence (months)

 

12

24

36

48

All patients

 

0.09

0.18

0.25

0.30

Age

 < 60

0.11

0.23

0.31

0.37

 

60–74

0.08

0.16

0.24

0.31

 

 ≥ 75

0.08

0.16

0.24

0.24

Sex

Male

0.03

0.15

0.23

0.27

 

Female

0.16

0.21

0.29

0.33

Tumour location

Colon

0.15

0.17

0.23

0.23

 

Sigmoid/rectosigmoid

0.09

0.29

0.32

0.39

 

Rectum

0.02

0.10

0.24

0.31

Tumor type

Adenocarcinoma

0.06

0.16

0.23

0.28

 

Mucinous adenocarcinoma

0.32

0.32

0.48

0.48

Histological grade

Low/well differentiated

0.04

0.16

0.22

0.28

 

Moderate

0.11

0.20

0.26

0.30

 

High/poorly differentiated

0.07

0.07

0.29

0.29

T stage (depth)

T1/ T2

0.00

0.07

0.10

0.14

 

T3

0.07

0.16

0.28

0.33

 

T4

0.52

0.71

0.71

0.71

N stage (nodes)

N0

0.03

0.10

0.13

0.15

 

N1

0.06

0.16

0.27

0.27

 

N2

0.35

0.52

0.73

0.90

Vascular invasion

Absent

0.04

0.13

0.16

0.16

 

Present/suspicious

0.22

0.28

0.51

0.64

Perineural invasion

Absent

0.07

0.14

0.22

0.25

 

Present

0.13

0.28

0.37

0.44

Positive margins

Uninvolved

0.06

0.15

0.22

0.26

 

One positive margin

0.36

0.43

0.58

0.69

Nodes examined

 < 12

0.08

0.17

0.20

0.24

 

 ≥ 12

0.09

0.18

0.27

0.31

Post-operative adjuvant therapy

None

0.08

0.14

0.14

0.16

 

Chemotherapy or radiation

0.09

0.25

0.49

0.60