TABLE 2.
H. pylori vacA s and m regions subtyping in dyspeptic patients
| Patient groupa | No. of patients with subtyping result
|
||||||||
|---|---|---|---|---|---|---|---|---|---|
| s1a | s1b | s2 | M | N | m1a | m2a | M | N | |
| G (n = 22) | 18 | 1 | 1 | 2 | 0 | 2 | 12 | 8 | 0 |
| GU (n = 5) | 5 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 0 |
| DU (n = 28) | 23 | 0 | 1 | 3 | 1 | 3 | 10 | 15 | 0 |
| GC (n = 10) | 8 | 0 | 1 | 1 | 0 | 3 | 4 | 3 | 0 |
| Total (n = 65) | 54 | 1 | 3 | 6 | 1 | 8 | 28 | 29 | 0 |
a
Abbreviations: G, gastritis; GU, gastric ulcer; DU, duodenal ulcer; GC, gastric cancer; n number examined; M, multiple infections (either s or m subtypes); N, negative (either s or m subtypes).