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Table 3 Frequency of vacA E-, K- and Q- types in CA and NCA patients

From: New genotypes of Helicobacter Pylori VacA d-region identified from global strains

VacA Type CA (%) NCA (%) Total P-value
‘d’-region E 14 (12.17) 160 (27.40) 174 0.0007
K 93 (80.87) 367 (62.84) 460  
Q 8 (6.96) 57 (9.76) 65  
s-i-m-c-n-‘E/K’ s1i1m1c1n1E 0 (0) 0 (0) 0 0.0009
combinations s1i1m1c1n1K 74 (64.35) 293 (50.0) 367  
s2i2m2c2n2E 10 (8.70) 94 (16.04) 104  
s2i2m2c2n2K 0 (0) 2 (0.34) 2  
Othersa 31 (26.96) 197 (33.62) 228  
  1. CA Cancer and MALT patients, NCA Atrophic gastritis, intestinal metaplasia, chronic gastritis, functional dyspepsia, gastric ulcer, duodenal ulcer and volunteers. The table also shows the frequencies of E and K types when combined with vacA s, i m, c and n genotypes. Othersa are various combinations that were found other than the ones mentioned in the above table