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Table 5 The expression of vimentin protein in different components of PESC

From: The alterations of cytokeratin and vimentin protein expressions in primary esophageal spindle cell carcinoma

  Number Expression rate of vimentin protein (%) Positive in epithelial component (%) Positive in spindle component (%) Positive in both of epithelial and spindle components (%) χ 2 P
Age
  < 60 years 26 26 (100.0) 2 (7.7) 26 (100.0) 2 (7.7) 0.15 1.000
  ≥ 60 years 56 56 (100.0) 5 (8.9) 56 (100.0) 5 (8.9)
Gender
 Male 57 57 (100.0) 5 (8.8) 57 (100.0) 5 (8.8) 0.15 1.000
 Female 25 25 (100.0) 2 (8.0) 25 (100.0) 2 (8.0)
Family history
 Positive 18 18 (100.0) 3 (16.7) 18 (100.0) 3 (16.7) 3.347 0.309
 Negative 64 64 (100.0) 4 (6.3) 64 (100.0) 4 (6.3)
Smoking
 Yes 41 41 (100.0) 4 (9.8) 41 (100.0) 4 (9.8) 0.379 1.000
 No 41 41 (100.0) 3 (7.3) 41 (100.0) 3 (7.3)
Alcohol
 Yes 36 36 (100.0) 5 (13.9) 36 (100.0) 5 (13.9) 3.782 0.282
 No 46 46 (100.0) 2 (4.3) 46 (100.0) 2 (4.3)
Tumor location
 Upper 3 3 (100.0) 0 (0.0) 3 (100.0) 0 (0.0) 1.57 0.832
 Middle 54 54 (100.0) 4 (7.4) 54 (100.0) 4 (7.4)
 Lower 25 25 (100.0) 3 (12.0) 25 (100.0) 3 (12.0)
Gross appearance
 Polypoid 69 69 (100.0) 5 (7.2) 69 (100.0) 5 (7.2) 7.59 0.188
 Ulcerative 8 8 (100.0) 0 (0.0) 8 (100.0) 0 (0.0)
 Infiltrating 5 5 (100.0) 2 (40.0) 5 (100.0) 2 (40.0)
Lymph node metastasis
 Yes 23 23 (100.0) 2 (8.7) 23 (100.0) 2 (8.7) 0.21 1.000
 No 59 59 (100.0) 5 (8.5) 59 (100.0) 5 (8.5)
TNM stage
 I 29 29 (100.0) 0 (0.0) 29 (100.0) 0 (0.0) 7.50 0.067
 II 37 37 (100.0) 5 (13.5) 37 (100.0) 5 (13.5)
 III 16 16 (100.0) 2 (12.5) 16 (100.0) 2 (12.5)
 IV 0 0 (0.0) 0 (0.0) 0 (0.0) 0 (0.0)
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