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| Age | Mean ± SEM | 62.8 ± 0.91 |
| Sex | Female | 67 % |
| Location | Bulbs | 14 % |
| Superior duodenal angle | 9 % | |
| Descending part | 66 % | |
| Inferior duodenal angle | 8 % | |
| Transverse part | 3 % | |
| Site | Anterior wall | 15 % |
| Lateral wall | 20 % | |
| Posterior wall | 33 % | |
| Medial wall | 32 % | |
| Lesion size | Mean ± SEM, mm | 27.4 ± 0.96 |
| Occupied circumference | > 1/2 | 92 % |
| < 1/2 | 8 % | |
| Macroscopic type | 0-I | 7 % |
| 0-IIa | 77 % | |
| 0-IIc | 16 % |
