Characteristics (n = 92)

Age (years), mean ± SD

40.8 ± 12.8

Sex (male), n (%)

50 (54.0)

Age of onset (years) mean ± SD

19.4 ± 8.9

Duration of the disease (years) mean ± SD

21.8 ± 9.5

Family History (+/−)

38/54

Mode of Inheritance

Autosomal dominant

8 (21)

Autosomal recessive

30 (79)