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Table 1 Patient and tumor characteristics (The numbers in parenthesis are percentages).*

From: Ep-CAM expression in squamous cell carcinoma of the esophagus: a potential therapeutic target and prognostic marker

   Ep-CAM expression
Variable Patients 0 1+ 2+ 3+
Patients   15 18 8 29
   Male 50 (71) 10 (67) 12 (67) 5 (38) 23 (79)
   Female 20 (29) 5 (33) 6 (33) 3 (62) 6 (21)
Primary Tumor      
   pT1 15 (21) 4 (27) 3 (17) 3 (38) 5 (17)
   pT2 11 (16) 3 (20) 2 (11) 2 (24) 4 (14)
   pT3 42 (60) 8 (53) 11 (61) 3 (38) 20 (69)
   pT4 2 (3) 0 (0) 2 (11) 0 (0) 0 (0)
Lymph node status      
   pN0 33 (47) 7 (47) 9 (50) 6 (75) 11 (38)
   pN1 37 (53) 8 (53) 9 (50) 2 (25) 18 (62)
Tumor grade      
   G2 47 (67) 10 (67) 12 (67) 6 (75) 19 (66)
   G3 23 (33) 5 (33) 6 (33) 2 (25) 10 (34)
  1. *No statistical significant correlations between Ep-CAM expression and the histopathological parameters were observed.