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Table 8 The clinicopathological features with different stage in PESC

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

  Number Stage (%) χ 2 P
I(n = 29) II(n = 37) III(n = 16)
Age
  < 60 years 26 7 (26.9) 14 (53.8) 5 (19.3) 1.41 0.494
  ≥ 60 years 56 22 (39.3) 23 (41.1) 11 (19.6)
Gender
 Male 57 21 (36.8) 25 (43.9) 11 (19.3) 0.19 0.911
 Female 25 8 (32.0) 12 (48.0) 5 (20.0)
Family history
 Positive 18 6 (33.3) 9 (50.0) 3 (16.7) 0.25 0.885
 Negative 64 23 (35.9) 28 (43.8) 13 (20.3)
Smoking
 Yes 41 15 (36.6) 17 (41.5) 9 (21.9) 0.53 0.768
 No 41 14 (34.1) 20 (48.8) 7 (17.1)
Alcohol
 Yes 36 11 (30.6) 15 (41.7) 10 (27.7) 2.84 0.242
 No 46 18 (39.1) 22 (47.8) 6 (13.1)
Tumor location
 Upper 3 1 (33.3) 2 (66.7) 0 (0.0) 1.17 0.960
 Middle 54 19 (35.2) 23 (42.6) 12 (22.2)
 Lower 25 9 (36.0) 12 (48.0) 4 (16.0)
Gross appearance
 Polypoid 69 25 (36.2) 30 (43.5) 14 (20.3) 5.21 0.221
 Ulcerative 8 4 (50.0) 4 (50.0) 0 (0.0)
 Infiltrating 5 0 (0.0) 3 (60.0) 2 (40.0)
Lymph node metastasis
 Yes 23 1 (4.3) 7 (30.4) 15 (65.3) 42.27 0.000
 No 59 28 (47.5) 30 (50.8) 1 (1.7)