| Endoscopic findings | Stool Ag-H. pylori number (%) | Total | |
| Negative | Positive | ||
| Normal | 1 (33.3) | 2 (66.7) | 3 |
| Antral gastritis | 21 (35.6) | 38 (64.4) | 59 |
| Duodenal ulcer | 4 (19.0) | 17 (81.0) | 21 |
| Duodenitis | 2 (50.0) | 2 (50.0) | 4 |
| GERD | 3 (50.0) | 3 (50.0) | 6 |
| Atrophic gastritis | 4 (57.1) | 3 (42.9) | 7 |
| Total | 35 | 65 | 100 |