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Table 1 Clinical, pathological and molecular characteristics of colon cancer patients in the two cohorts of treatment

From: Management of stage II colon cancer - the use of molecular biomarkers for adjuvant therapy decision

 

Frequency N (%)

 

Surgery alone (n = 60; 50%)

5-FU therapy (n = 60; 50%)

p

Clinical-pathological features

Age, mean (SD), years

 

67.4 (10.44)

67.7 (10.8)

0.9

Sex

Male

28 (47)

29 (48)

0.3

Female

32 (53)

31 (52)

Tumour location 1

Proximal

21 (35)

25 (42)

0.4

Distal

39 (65)

35 (58)

Tumour grade

G1

8 (13)

8 (13)

0.5

G2

51 (85)

49 (82)

G3

1 (2)

3 (5)

Depth of tumour invasion

pT3

53 (88)

53 (88)

1.0

pT4

7 (12)

7 (12)

Lymphovascular invasion

No

39 (65)

37 (62)

0.8

Yes

21 (35)

22 (38)

Large veins invasion

No

51 (85)

47 (78)

0.3

Yes

9 (15)

13 (22)

Tumour infiltrating lymphocytes

No

53 (88)

48 (80)

0.2

Yes

7 (12)

12 (20)

Chron’s like reaction

No

31 (52)

27 (45)

0.4

Yes

29 (48)

33 (55)

Tumour border configuration

Pushing

56 (93)

51 (85)

0.2

Infiltrating

4 (7)

9 (15)

Molecular parameters

MMR system

dMMR

8 (13)

10 (17)

0.6

pMMR

52 (87)

50 (83)

CIMP

CIMP-High

8 (13)

14 (23)

0.3

CIMP-Low

18 (30)

18 (30)

CIMP-0

34 (57)

28 (47)

TYMS mRNA expression

High level

24 (40)

33 (55)

0.1

Low level

36 (60)

27 (45)

TYMS protein expression (IHC)

High

30 (50)

28 (47)

0.7

Low

30 (50)

32 (53)

TP53

Positive

24 (40)

22 (37)

0.7

Negative

36 (60)

38 (63)

CTNNB12 Cytoplasmic localization

Positive

41 (68)

41 (69)

0.8

Negative

19 (32)

18 (31)

CTNNB12 Nuclear localization

Positive

18 (30)

26 (44)

0.1

Negative

42 (70)

33 (56)

CTNNB12 Membrane localization

Positive

27 (45)

19 (32)

0.1

Negative

33 (55)

40 (68)

BRAF c.1799 T > A

Wild type

51 (85)

52 (87)

1.0

  

Mutated

9 (15)

8 (13)

 
  1. 1: Proximal colon includes cecum to transverse colon and distal colon includes splenic flexure to sigmoid colon.
  2. 2: One of the 60 cases treated with 5-FU was excluded from the analysis because of poor staining.