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| BPE | ||||
|---|---|---|---|---|
| minimal/mild | moderate | marked | Total | |
| age | ||||
| ≤40 | 28 (46.7) | 18 (30) | 14 (23.3) | 60 (100) |
| 41–55 | 136 (61.8) | 50 (22.7) | 34 (15.5) | 220 (100) |
| >55 | 214 (82.3) | 34 (13.1) | 12 (4.6) | 260 (100) |
| Total | 378 (70) | 102 (18.9) | 60 (11.1) | 540 (100) |
Data are numbers of subjects with percentages in parentheses
