Prevalence of Helicobacter pylori-associated histopathology in individuals with evaluated gastric biopsies, comparing Aklavik H pylori Project participants (Northwest Territories, Canada) and University of Alberta Hospital patients (Edmonton, Alberta, Canada)
| Aklavik project participants (H pylori prevalence=66%) | University of Alberta Hospital patients (H pylori prevalence=14%*) | ||
|---|---|---|---|
| 129 H pylori+ participants† | 401 H pylori+ patients assessed | ||
| Per cent | Per cent | Explicitly assessed for condition (n) | |
| Gastritis | 100 | 99 | 401 |
| Acute | 94 | 11 | 390 |
| Chronic | 100 | 99 | 390 |
| Mild | 9 | 40 | 282 |
| Moderate‡ | 47 | 55 | 282 |
| Severe§ | 43 | 5 | 282 |
| Atrophy | 21 | 2 | 401 |
| Intestinal metaplasia | 11 | 15 | 401 |
*413 H pylori-positive diagnoses (in 401 unique patients) among 3030 pathology reports that mentioned H pylori.
†Missing data: Two from acute gastritis, one from atrophy and one from intestinal metaplasia.
‡Includes mild–moderate.
§Includes moderate–severe.