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Table 2 Genotype and alleles of H. pylor i vacA frequencies in cases.

From: Association of IL1B -511C/-31T haplotype and Helicobacter pylori vacA genotypes with gastric ulcer and chronic gastritis

Genotypes or alleles Cases p-value
  Chronic gastritis n(%) Gastric ulcer n(%)  
Genotypes    
s1m1 31 (40.2) 13 (54.1) 0.254Ω
s1m2 16 (20.8) 6 (25.0)  
s2m2 16 (20.8) 3 (12.5)  
s1m1 y s1m2 14 (18.2) 1 (4.2)  
Not typed * - 1 (4.2)  
   Total 77 (100) 24 (100)  
Alleles s    
s1 75 (82.4) 22 (88.0) 0.551Ω
s2 16 (17.6) 3 (12.0)  
   Total 91 (100) 25 (100)  
Alleles m    
m1 45 (49.5) 14 (58.3) 0.187 θ
m2 46 (50.5) 10 (41.7)  
   Total 91 (100) 24 (100)  
  1. * Signal region s1genotype Ω Fisher's exact test θX2 Test
  2. It was not possible to amplify the m allele in one biopsy.