Prevalence of primary focal and segmental dystonia in Oslo.
All patients seeking medical treatment for primary focal and segmental dystonia in Oslo, Norway, were identified in a service-based prevalence study. A total of 129 patients with focal and segmental dystonia were treated. The total prevalence was 25.4 per 100,000, but the prevalence increased with age from 4.1 (age < 30) to 58.7 (age > 70). The prevalence in subjects of European descent was 28.3 per 100,000, much higher than among first-generation immigrants of Asian and African descent.
Le
Khanh-Dung
KD
University of Oslo Medical School, The National Hospital, University of Oslo, Norway.
Nilsen
Beate
B
Dietrichs
Espen
E
D000328:Adult; D017677:Age Distribution; D000368:Aged; D020821:Dystonic Disorders / Q000145:classification / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009664:Norway / Q000453:epidemiology; D015995:Prevalence; D017678:Sex Distribution; D014103:Torticollis / Q000453:epidemiology