From: Analysis of virulence factors of Helicobacter pylori isolated from a Vietnamese population
 | Neutrophil infiltration | |||||||
---|---|---|---|---|---|---|---|---|
 | pre-EPIYA typing | EPIYA repeat typing | cag right-end junction typing | |||||
Grade | Vietnamese | East Asian | Western | East Asian | Western | I | II | III |
none | 4 | 1 | 1 | 7 | 0 | 0 | 4 | 3 |
mild | 49 | 9 | 4 | 59 | 4 | 6 | 56 | 1 |
moderate | 26 | 3 | 0 | 29 | 0 | 3 | 26 | 0 |
severe | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
p-value | N.S. | N.S. | ** p | * p | Â |