Table 3

Clinicopathological risk factors classified according to liver metastasis

Risk factors

Liver Metastasis

P*


n

Negative

Positive


Gender

Male

247

182

65

0.939

Female

108

80

28

Age

≤ 55

54

22

32

< 0.001

> 55

301

240

61

Tumour localization

Rectum

203

150

53

0.965

Colon

152

112

40

Tumour size (cm)

≤ 5

120

102

18

0.001

> 5

235

160

75

Type of tumour

Adenocarcinoma

299

232

67

0.002

Mucinous adenocarcinoma

31

17

14

Signet-ring cell carcinoma

16

9

7

Undifferentiated carcinoma

9

4

5

Tumour cell differentiation

Well/moderately differentiated

279

236

43

< 0.001

Poorly differentiated

76

26

50

Tumour invasion depth

T1

5

5

0

0.002

T2

63

20

1

T3

252

221

72

T4

35

25

20

Lymph node metastasis

< 4

123

104

19

0.001

≥ 4

232

158

74

Nuclear beta-catenin expression in SLN(s)

≤ 50%

254

231

23

< 0.001

> 50%

101

31

70


* P value is the result of χ2 test in the same factor, and < 0.05 is considered statistically significant.

Cheng et al. Diagnostic Pathology 2011 6:109   doi:10.1186/1746-1596-6-109

Open Data