| Variable | Number of cases (%) |
|---|---|
| Total | 1,466 |
| Sex | |
| Male | 879 (60.0) |
| Female | 587 (40.0) |
| Age (yr), mean±SD | 47.8±11.9 |
| Esophagogastroduodenoscopy finding | |
| Gastric ulcer | 278 (19.0) |
| Duodenal ulcer | 692 (47.2) |
| Gastric ulcer+duodenal ulcer | 116 (7.9) |
| Gastric cancer | 8 (0.5) |
| Marginal zone B-cell lymphoma | 2 (0.1) |
| Gastritis | 336 (22.9) |
| Other | 34 (2.4) |