Brief summary of the clinical features and CAG repeat numbers in the patients withSCA1
| Patient | Age/sex | Onset (y) | Disease duration (y) | Vocal cord paralysis1-150 | Stridor at night | Stridor during wakefulness | Dysphagia | Breathing difficulty | Tracheotomy | (CAG)n of mutant allele |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 30/M | 28 | 2 | + | − | − | + | − | − | 53 |
| 2 | 48/F | 39 | 9 | + | + | − | + | − | − | 48 |
| 3 | 27/F | 20 | 7 | ++ | + | − | + | + | − | 59 |
| 4 | 34/M | 23 | 11 | ++ | + | − | + | + | + | 52 |
| 5 | 56/F | 46 | 9 | +++ | + | + | + | + | + | 47 |
| 6 | 67/F | 51 | 14 | − | + | − | + | − | − | 46 |
| 7 | 50/F | 41 | 8 | − | − | − | − | − | − | 46 |
↵1-150 (−)=normal, (+)=median position, (++)=paramidline position, (+++)=midline position.