Association between Helicobacter pylori genes and endoscopic findings
| Antral gastritis | Diffuse gastritis | Peptic ulcer | Duodenitis | |
|---|---|---|---|---|
| The number of patients belonging to each category is reported. The data were analysed by means of the χ2 test, comparing each virulence gene in the 8 reported groups. | ||||
| babA2 | ||||
| Positive | 9 | 17 | 20 | 14 |
| Negative | 43 | 24 | 21 | 19 |
| χ2=11.8; p<0.05 | ||||
| oipA | ||||
| Positive | 5 | 10 | 14 | 7 |
| Negative | 7 | 9 | 5 | 3 |
| χ2=4.0; NS | ||||
| cagA | ||||
| Positive | 20 | 26 | 32 | 27 |
| Negative | 32 | 15 | 9 | 6 |
| χ2=22.4; p<0.001 | ||||
| s vacA | ||||
| s1 | 20 | 26 | 32 | 27 |
| s2 | 32 | 15 | 9 | 6 |
| χ2=22.4; p<0.01 | ||||
| m vacA | ||||
| m1 | 12 | 20 | 17 | 14 |
| m2 | 40 | 21 | 24 | 19 |
| χ2=6.6; NS | ||||