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Table 1 Characteristics of the study groupsa

From: Gastric cancer progression associated with local humoral immune responses

  Gastric cancer (n = 16) Non-cancer (n = 14)
Mean age, yr (± SD) 57.6 ± 16.7 47.2 ± 13.3
Gender (Male/Female) 9/7 2/12
H. pylori colonizationb 93.8 %* 64.3 %
Early stage of cancer (I and II) 5 -
Advanced stage of cancer (III and IV) 11 -
Positivity to H. pylori of each anatomic site   
 Fundus 50 35.7
 Corpus 56.2 50
 Angular portion 50 35.7
 Antrum 37.5 42.8
From the tumorc   
 Mid-tumor 68.8 -
 Tumor margin 68.8 -
 At least 2 cm** 62.5 -
 At least 5 cm** 56.3 -
  1. aFrom our previous report [3]
  2. bH. pylori was identified either by culture or PCR
  3. cH. pylori-colonization in the tumor sites was 81.3 %
  4. *p < 0.05
  5. **At least 2 and 5 cm away from tumor margin