Table 4 The distribution of histological features based on virulence factor genotypes
From: Advanced non-cardia gastric cancer and Helicobacter pylori infection in Vietnam
| Â | Lauren type | ||||
|---|---|---|---|---|---|
| Â | Total | Intestinal type | Diffuse type | Indeterminate | |
n (%) | |||||
Total | Â | 112 | Â | Â | Â |
CagA | |||||
 Western-type | 2 (1.8%) | 0 (0%) | 2 (100%) | 0 (0%) | |
 East Asian-type | 110 (98.2%) | 45 (40.9%) | 61 (55.5%) | 4 (3.6%) | |
Pre-EPIYA | |||||
 18 bp deletion-type | 94 (85.5%) | 36 (38.3%) | 54 (57.4%) | 4 (4.3%) | |
 39 bp deletion-type | 13 (11.8%) | 6 (46.2%) | 7 (53.8%) | 0 (0%) | |
 No deletion-type | 3 (2.7%) | 1 (33.3%) | 2 (66.7%) | 0 (0%) | |
vacA genotype | |||||
 s region | |||||
  s1 | 111 (99.1%) | 44 (39.6%) | 63 (56.8%) | 4 (3.6%) | |
  s1s2 | 1 (0.9%) | 1 (100%) | 0 (0%) | 0 (0%) | |
 m region | |||||
  m1 | 77 (68.8%) | 30 (39%) | 45 (58.4%) | 2 (2.6%) | |
  m2 | 35 (31.2%) | 15 (40.2%) | 18 (51.4%) | 2 (5.7%) | |