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Prevalence of clinical symptoms
| Clinical symptoms | HGM(+)n (%) | HGM(-)n (%) | P |
| Heartburn and regurgitation | 38 (9) | 6261 (6.2) | 0.02 |
| Throat discomfort | 24 (5.7) | 3635 (3.6) | 0.02 |
| Dysphagia | 39 (9.3) | 3231 (3.2) | 0.00 |
| Retrosternal pain | 17 (4.0) | 4847 (4.1) | 0.47 |
| Epigastric discomfort | 260 (61.9) | 10098 (10.0) | 0.00 |
HGM: Heterotopic gastric mucosa.
