Prevalence of virulence genotypes in subgroups of functional dyspepsia among H. pylori infected patients
| Pure PDS % (n) | Pure EPS % (n) | Pure overlap % (n) | p Value | |
|---|---|---|---|---|
| CagA | 0.044 | |||
| Positive | 98.4% (60/61) | 89.1% (41/46) | 85.7% (42/49) | |
| Negative | 1.6% (1/61) | 10.9% (5/46) | 14.3% (7/49) | |
| VacA | 0.749 | |||
| S1 | 95.1% (58/61) | 97.9% (46/47) | 95.8% (46/48) | |
| S2 | 4.9% (3/61) | 2.1% (1/47) | 4.2% (2/48) | |
| VacA | 0.318 | |||
| M1 | 60.0% (36/60) | 45.5% (20/44) | 56.9% (29/51) | |
| M2 | 40.0% (24/60) | 54.5% (24/44) | 17.6% (9/51) |
p Values calculated using χ2 test or Fisher's exact test as appropriate.
EPS, epigastric pain syndrome; PDS, postprandial distress syndrome.