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Endoscopic comparison of ulcer morphology between the two groups (n (%)).
| Ulcer morphology | EBER-positive (n = 13) | EBER-negative (n = 17) | χ 2 | P values | |
|---|---|---|---|---|---|
| Morphology | Deep ulcerations | 8 (61.5) | 2 (11.8) | 8.213 | 0.004 |
| Superficial ulcerations | 5 (38.5) | 15 (88.2) | |||
