Prevalence of Helicobacter pylori infection in subjects with and without oesophagitis
| Oesophagitis | |||||
|---|---|---|---|---|---|
| None | Mild | Moderate | Severe | Total | |
| H pylori positive | 543 (46%) | 61 (38%) | 35 (41%) | 24 (37%) | 663 |
| H pylori negative | 629 (54%) | 101 (62%) | 50 (59%) | 41 (63%) | 821 |
| Total | 1172a | 162 | 85 | 65 | 1484b |
a H pylori status for one patient unknown.
1-b Oesophageal grading for one patient unknown.