TABLE 2.
Multivariate logistic regression model depicting parameters relating to the development of peptic ulcers
| Risk factor | No. (%) of cases with non-peptic ulcers | No. (%) of cases with peptic ulcers | OR (95% CI)a | P |
|---|---|---|---|---|
| cagA EPIYA status | ||||
| Defective cagPAI | 41 (28.5) | 12 (8.3) | Reference | <0.001 |
| 1 EPIYA-C repeat | 25 (17.4) | 34 (23.6) | 4.647 (2.037-10.602) | 0.015 |
| ≥2 EPIYA-C repeat | 10 (6.9) | 11 (7.6) | 3.758 (1.288-10.969) | 0.003 |
| Mixed infections | 3 (2.1) | 8 (5.6) | 9.111 (2.085-39.810) | <0.001 |
| vacA alleles | ||||
| s2 | 30 (20.8) | 11 (7.6) | Reference | |
| s1 | 49 (34.0) | 54 (37.5) | 0.24 | |
| i2 | 34 (23.6) | 19 (13.2) | Reference | |
| i1 | 45 (31.3) | 46 (31.9) | 0.76 | |
| Activity of chronic gastritis | ||||
| Mild | 11 (7.6) | 1 (0.7) | Reference | |
| Moderate | 32 (22.2) | 21 (14.6) | 0.383 | |
| Marked | 36 (25.0) | 43 (29.9) | 0.129 |
a
Reference, used as the reference category for the calculation of risk in each case.