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Frequency of GER episodes lasting more than 5 min in eld erly and younger patients (x- ± s)
| Elderly | patients | Younger | patients | |
| Upright position | ||||
| P R | 3 | 2 | 5 | 3 |
| RE | 9 | 6 | 5 | 6 |
| Supine position | ||||
| P R | 3 | 2 | 5 | 3 |
| RE | 3 | 2 | 2 | 2 |
P > 0.05, elderly patients vs younger patients; PR = pathological reflux; RE = reflux esophagitis.
