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Table 1 Clinicopathological factors depending on the distance of the proximal resection margin (PRM) in the patients who underwent curative total gastrectomy

From: Prognostic value of the distance of proximal resection margin in patients who have undergone curative gastric cancer surgery

Parameter PRM (cm)   P value
  ≤2 2 - 4 ≥4   
Gender      0.305
Male 35 42 62 139  
Female 33 31 42 106  
Age (years)      0.403
≤60 28 35 50 113  
>60 40 38 54 132  
T-stage      <0.001
T1 2 21 36 59  
T2 24 17 37 78  
T3 40 28 29 97  
T4 2 7 2 11  
N-stage      <0.001
N0 11 27 52 90  
N1 14 19 23 56  
N2 13 8 10 31  
N3 30 19 19 68  
Vascular invasion      0.007
Absent 37 54 78 169  
Present 31 19 26 76  
Lymphatic invasion      0.003
Absent 7 23 33 63  
Present 31 19 71 182  
Neural invasion      <0.001
Absent 6 28 37 71  
Present 62 45 67 174  
Histology      0.045
Differentiated 13 18 34 65  
Undifferentiated 55 55 70 180  
Lauren’s classification      0.316
Intestinal 9 16 28 53  
Diffuse 43 42 49 134  
Mixed 16 15 27 58  
Tumor size (cm)      <0.001
≤2 0 6 13 19  
2 - 5 8 26 43 77  
>5 60 41 48 149  
Tumor location      <0.001
Lower third 0 1 13 14  
Middle third 13 34 73 120  
Upper third 34 31 18 83  
Entire 21 7 0 28