Table 1.

Clinical characteristics of the probands with dystonia.

Sex	Male: 30 (33%)
	Female: 61 (67%)
Age at exam	Mean: 48.7 years (SD± 17.5years)
	Range: 2 to 84 years
Dystonia age of onset	Mean: 32.5 years (SD± 18.1 years)
	Range: 3 months to 68 years
	Median: 29 years
Age of onset Distribution	Infancy (0 – 2 years):2 (2.2%)
	Childhood (3 – 12 years): 15 (16.5%)
	Adolescence (13 – 20 years): 11 (12.1%)
	Early adulthood (21 – 40 years): 31(34%)
	Late adulthood (> 40 years): 32 (35.2%)
Family history	Negative: 67 (73.6%)
	Positive: 11 (12.1%)
	Possible*: 10 (11%)
	Not informed: 3 (3.3%)
Dystonia Distribution	Focal: 39 (42.8%)
	Segmental: 34 (37.4%)
	Generalized: 13 (14.3%)
	Multifocal: 5 (5.5%)

^*Subjects reported family history of dystonia but family members were not examined for confirmation.