Fragile X features in females for different age categories3-150
| ⩽16 years % (95% CI) (n=216) | >16 years % (95% CI) (n=467) | Total % (95% CI) (n=683) | |
|---|---|---|---|
| Fragile X related features | |||
| Family history of mental retardation | 21 (15-26) | 13 (10-16) | 16 (13-18) |
| Elongated face | 5 (2-8) | 4 (3-7) | 4 (3-7) |
| Large and prominent ears | 2 (1-5) | 3 (2-6) | 3 (2-5) |
| Hyperextensible joints | |||
| MC digit V | 34 (27-40) | 18 (14-21) | 23 (20-26) |
| MC digit V and digit I | 5 (2-8) | 2 (1-4) | 3 (2-5) |
| Soft/smooth skin | 1 (0-3) | 5 (4-8) | 4 (3-6) |
| Personality | 1 (0-3) | 4 (2-6) | 3 (2-5) |
| Non-fragile X related features | |||
| Microcephaly | 9 (6-14) | 21 (18-25) | 17 (15-20) |
| Non-fra(X) related dysmorphic features (⩾3 or microcephaly)3-151 | 18 (13-23) | 47 (43-52) | 38 (34-42) |