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Table 2 The expression rate of AE1/AE3 protein in PESC

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

  Number Expression rate of AE1/AE3 protein (%) χ 2 P
Positive(n = 70) Negative(n = 12)
Age
  < 60 years 26 19 (73.1) 7 (26.9) 3.28 0.070
  ≥ 60 years 56 51 (91.1) 5 (8.9)
Gender
 Male 57 48 (84.2) 9 (15.8) 0.01 0.914
 Female 25 22 (88.0) 3 (12.0)
Family history
 Positive 18 16 (88.9) 2 (11.1) 0.01 0.919
 Negative 64 54 (84.3) 10 (15.7)
Smoking
 Yes 41 34 (82.9) 7 (17.1) 0.10 0.755
 No 41 36 (87.8) 5 (12.2)
Alcohol
 Yes 36 30 (83.3) 6 (16.7) 0.21 0.654
 No 46 40 (87.0) 6 (13.0)
Tumor location
 Upper 3 2 (66.7) 1 (33.3) 1.48 0.580
 Middle 54 46 (85.2) 8 (14.8)
 Lower 25 22 (88.0) 3 (12.0)
Gross appearance
 Polypoid 69 59 (85.5) 10 (14.5) 1.30 0.660
 Ulcerative 8 6 (75.0) 2 (25.0)
 Infiltrating 5 5 (100.0) 0 (0.0)
Lymph node metastasis
 Yes 23 21 (91.3) 2 (8.7) 0.36 0.547
 No 59 49 (83.1) 10 (16.9)
TNM stage
 I 29 27 (93.1) 2 (6.9) 4.40 0.121
 II 37 28 (75.7) 9 (24.3)
 III 16 15 (93.8) 1 (6.2)
 IV 0 0 (0.0) 0 (0.0)
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