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Endoscopic diagnostic groups: basic data and number of patients withdental erosion
| Diagnostic groups | Number | Mean age (yrs) | Gender | Dental erosion detected | |
| No (%) | ± S.D | Male | Female | ||
| Reflux oesophagitis | 41 (32.8) | 36.9 ± 9.7 | 24 | 17 | 8 |
| Duodenal ulcer | 36 (28.8) | 39.2 ± 11.4 | 16 | 20 | 7 |
| Gastric ulcer | 48 (38.4) | 38.1 ± 11.0 | 17 | 31 | 5 |
Prevalence of erosion between diagnostic groups: Chi-square = 1.33, df = 2, p = 0.51.
