Bacterial density in relation to cagA status after exclusion of patients receiving pretreatment with proton pump inhibitors
| Bacterial density | Strain characteristics | |
|---|---|---|
| cagA+ | cagA− | |
| Not significant. | ||
| Grade I | 15 (10.9%) | 24 (20.2%) |
| Grade II | 72 (52.5%) | 45 (37.8%) |
| Grade III | 39 (28.5%) | 36 (30.3%) |
| Grade IV | 11 (8.1%) | 14 (11.7%) |