title: The prevalence of primary dystonia in the general community.
abstract: The prevalence of primary dystonia was assessed in a random population sample of individuals aged 50 and over in Bruneck, South Tyrol. The diagnosis of primary dystonia was confirmed by videotaped review. Primary dystonia was present in 6 of 707 cases resulting in a prevalence rate of 732 per 100,000 (95% CI 319-1,564) in the general population aged 50 and over. Only two cases (33%) had been previously diagnosed. These results indicate that the true prevalence of primary dystonia is significantly higher than published rates.
authors.affiliation: University Hospital of Neurology, Innsbruck, Austria.
authors.forename: J
authors.initials: J
authors.lastname: Müller
authors.forename: S
authors.initials: S
authors.lastname: Kiechl
authors.forename: G K
authors.initials: GK
authors.lastname: Wenning
authors.forename: K
authors.initials: K
authors.lastname: Seppi
authors.forename: J
authors.initials: J
authors.lastname: Willeit
authors.forename: A
authors.initials: A
authors.lastname: Gasperi
authors.forename: J
authors.initials: J
authors.lastname: Wissel
authors.forename: T
authors.initials: T
authors.lastname: Gasser
authors.forename: W
authors.initials: W
authors.lastname: Poewe
mesh_terms: D000328:Adult; D000368:Aged; D016001:Confidence Intervals; D020821:Dystonic Disorders / Q000175:diagnosis / Q000453:epidemiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007558:Italy / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011446:Prospective Studies