BMI-1 activates hepatic stellate cells to promote the epithelial-mesenchymal transition of colorectal cancer cells

Table 1 Correlation between clinicopathological characteristics of colorectal cancer patients and BMI-1 expression in the liver

Characteristics	Cases, n = 18	BMI-1 expression		P value
		Negative, n = 4	Positive, n = 14
Age in yr				0.051
< 60	12	4	8
≥ 60	6	0	6
Sex				0.509
Male	11	3	8
Female	7	1	6
Primary tumor site				0.018a
Colon	10	4	6
Rectum	8	0	8
Tumor size in the liver in mm				0.278
< 30	8	3	5
30-50	3	0	3
≥ 50	5	1	5
Tumor numbers in the liver				0.432
1-2	12	2	10
≥ 3	6	2	4
Differentiation degree				0.881
Low	4	1	3
Middle-high	14	3	11
T stage				1
III	18	4	14
N stage				0.248
N0	9	3	6
N1 + N2	7	1	8

^aP < 0.05.