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Table 1 Patient characteristics and grade of esophageal carcinoma in two groups

From: Video-assisted mediastinoscopic transhiatal esophagectomy combined with laparoscopy for esophageal cancer

  Group A Group B Total
Gender    
   Male 20 8 28
   Female 12 0 12
Age    
   Mean ± SD (yrs) 59.3 ± 10.1 67.0 ± 7.1 65.5 ± 9.4
   Range (yrs) 42-78 55-73 42-78
Carcinoma location    
   Upper 16 2 18
   Midddle 14 4 18
   Lower 2 2 4
p- stage    
   T    
T is 0 1 1
T 1a 8 2 10
T 1b 10 3 13
T 2 8 1 9
T 3 6 1 7
T 4a and T 4b 0 0 0
   N    
N0 22 7 29
N1a 8 1 9
N1b 2 0 2
N2 and N3 0 0 0
   M    
M0 32 8 40
M1 0 0 0
   H    
H1 32 8 40
H2 0 0 0
   G    
Gx 5 0 5
G1 9 3 12
G2 16 4 20
G3 2 1 3
G4 0 0 0
TNM-stage    
   0 0 1 1
   Ia 7 3 10
   Ib 14 1 15
   II 10 3 13
   IIIa 1 0 1
   IIIb and IV 0 0 0