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Demographic and clinical characteristics of all enrolled patients with Schatzki rings n (%)
| Variables | Schatzki ring (n = 116) |
| Age, yr (mean ± SD) | 55.2 ± 4.9 |
| Gender (M/F) | 84/32 |
| History of allergy | 34 (29) |
| Dysphagia | 47 (41) |
| History of food impaction | 9 (8) |
| Heartburn | 31 (27) |
| No symptoms of esophageal dysfunction | 31 (27) |
M/F: Male/female.
