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Updated: Aug 30, 2026

Measurement & Analysis of the Temporal Discrimination Threshold Applied to Cervical Dystonia
Published on: January 27, 2018
Prevalence of primary focal and segmental dystonia in Oslo
Khanh-Dung Le1, Beate Nilsen, Espen Dietrichs
1University of Oslo Medical School, The National Hospital, University of Oslo, Norway.
Abstract:
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.
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