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| Age Group (Years) | NF1 (%) | NF2 (%) | SCHW (%) | Total (%) |
|---|---|---|---|---|
| Less than 5 | 2635 (65.5) | 54 (9.3) | 0 | 2689 (57.5) |
| 5–9 | 482 (12.0) | 74 (12.8) | 1 (1.2) | 557 (11.9) |
| 10–20 | 432 (10.7) | 195 (33.7) | 6 (7.4) | 633 (13.5) |
| Over 20 | 348 (8.7) | 248 (42.8) | 73 (90.1) | 669 (14.3) |
| Uncertain | 123 (3.1) | 8 (1.4) | 1 (1.2) | 132 (2.8) |
| Total | 4020 (100) | 579 (100) | 81 (100) | 4680 (100) |
