Table 2 The differences of E-cadherin, N-cadherin, and vimentin expression in human breast tumors

Primary breast tumor with metastasis

I

52

9.67 ± 0.34

0.96 ± 0.19

1.96 ± 0.24

Corresponding metastatic tumor

II

52

8.38 ± 0.34

1.81 ± 0.28

3.02 ± 0.35

Primary breast tumor without metastasis

III

52

10.90 ± 0.26

0.46 ± 0.12

0.92 ± 0.15

Benign breast tumor

IV

11

11.64 ± 0.36

0.09 ± 0.09

0.18 ± 0.12

χ²

35.267

31.455

45.777

P

0.000

0.000

0.000