Table 1 Age of onset in HD (A) and comparison of juvenile and late onset (B)
A) | All | Male | Female |
Available (n) | 79 | 40 | 39 |
Median (years) | 45 | 43.5 | 45 |
Range (years) | 16–79 | 18–79 | 16–78 |
B) | Juvenile onset | Late onset | |
Number of cases (male/female) | 3 (2/1) | 7 (1/6) | |
Percent of all cases | 3.3% | 7.8% | |
Age of onset | 16, 18, 19 years | 61, 61, 62, 62, 71, 78, 79 years | |
CAG repeat length | 70, 52, 59 repeats, respectively | 45, 45, 40, 37, 39, 37, 40 repeats, respectively | |
Affected parent known | 3 cases | 2 cases | |
Parental transmission | Paternal (3/3) | Maternal (2/2) | |