The prevalence of adult-onset isolated dystonia in Finland 2007-2016

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http://hdl.handle.net/10138/277459

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Ortiz , R , Scheperjans , F , Mertsalmi , T & Pekkonen , E 2018 , ' The prevalence of adult-onset isolated dystonia in Finland 2007-2016 ' , PLoS One , vol. 13 , no. 11 , 0207729 . https://doi.org/10.1371/journal.pone.0207729

Title: The prevalence of adult-onset isolated dystonia in Finland 2007-2016
Author: Ortiz, Rebekka; Scheperjans, Filip; Mertsalmi, Tuomas; Pekkonen, Eero
Contributor: University of Helsinki, Neurologian yksikkö
University of Helsinki, Department of Neurosciences
University of Helsinki, Clinicum
University of Helsinki, Neurologian yksikkö
Date: 2018-11-20
Language: eng
Number of pages: 9
Belongs to series: PLoS One
ISSN: 1932-6203
URI: http://hdl.handle.net/10138/277459
Abstract: Background Dystonia is a group of chronic diseases, causing considerable physical and psychosocial stress to patients and health care expenses. We studied the prevalence of different dystonia types in Finland in the years 2007-2016. Methods All patients with an ICD-10 code of dystonia were retrieved from the national care register. Average age-adjusted yearly prevalence was assessed for adult-onset isolated idiopathic or hereditary dystonia types from patient records from the Uusimaa and Pirkanmaa provinces. Results 1316 patients were confirmed to have adult-onset isolated idiopathic or hereditary dystonia based on hospital records from two provinces. On average, the age-adjusted prevalence for all adult-onset dystonia was 405 per million and for cervical dystonia 304 per million. For other dystonia types the prevalence ranged from 1-33 per million. Conclusions Adult onset cervical dystonia was the most common type of dystonia with relatively high prevalence in Finland compared with other countries. The prevalence of other types of dystonia was similar compared with other European studies. The higher prevalence of cervical dystonia may be partially explained by the better coverage of patients in public health care, but genetic and exogenous factors might contribute to it.
Subject: FOCAL DYSTONIA
SEGMENTAL DYSTONIA
EPIDEMIOLOGY
PREFECTURE
3124 Neurology and psychiatry
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