Evidence map›Paper›PMID 36247920›Full record

ReviewMovement disorders clinical practice2022

The Prevalence of Idiopathic or Inherited Isolated Dystonia: A Systematic Review and Meta-Analysis.

Alex Medina, Christelle Nilles, Davide Martino, Catherine Pelletier, Tamara Pringsheim

Abstract readReview
In one paragraph

Review in Movement disorders clinical practice, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. An Exploratory, Randomized, Double-Blind Clinical Trial of Dipraglurant for Blepharospasm.Movement disorders : official journal of the Movement Disorder Society · 2024
    Trial
  3. Optimal physiotherapy management strategies for cervical dystonia: an international Delphi study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Article
  4. Article
  5. Observational
  6. Article
  7. Article
  8. The Gut Microbiota Regulates Motor Deficits via Butyrate in a GnalAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  9. Review
  10. Article
  11. Dystonia: pathophysiology and the role of acupuncture in treatment.Wiener medizinische Wochenschrift (1946) · 2025
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Lesion-Induced Blepharospasm: Epidemiology and Clinical Characteristics.Tremor and other hyperkinetic movements (New York, N.Y.) · 2025
    Article
  19. Is Routine Neuroimaging Needed in Adult-Onset Isolated Cervical Dystonia?Tremor and other hyperkinetic movements (New York, N.Y.) · 2025
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Alex MedinaDepartment of Clinical Neurosciences, Cumming School of Medicine University of Calgary Calgary Alberta Canada.
Christelle NillesDepartment of Clinical Neurosciences, Cumming School of Medicine University of Calgary Calgary Alberta Canada.
Davide MartinoDepartment of Clinical Neurosciences, Cumming School of Medicine University of Calgary Calgary Alberta Canada.ORCID https://orcid.org/0000-0002-2217-0487
Catherine PelletierPublic Health Agency of Canada Ottawa Ontario Canada.
Tamara PringsheimDepartment of Clinical Neurosciences, Cumming School of Medicine University of Calgary Calgary Alberta Canada.ORCID https://orcid.org/0000-0002-8229-8431

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: A systematic review of epidemiological studies of primary dystonia from 1985 and 2010 found an overall prevalence of 16.43 per 100,000 (95% CI = 12.09-22.32). Methods: We performed a systematic review of studies from 2010 and 2022 to determine if there are important differences in epidemiology between these time periods. Results: Nineteen studies were included. Incidence of cervical dystonia, blepharospasm, and oromandibular dystonia were each reported in one study; one study reported incidence for all adult onset idiopathic focal dystonias combined. Using data from 11 studies, we performed random effects meta-analyses of the prevalence of cervical dystonia (9.95 per 100,000; 95% CI = 3.51-28.17), blepharospasm (2.82 per 100,000; 95% CI = 1.12-7.12), laryngeal dystonia (0.40 per 100,000; 95% CI = 0.09-1.83), upper limb dystonia (1.27 per 100,000; 95% CI = 0.36-4.52), oromandibular dystonia (0.57 per 100,000; 95% CI = 0.15-2.15), and idiopathic or inherited isolated dystonia all subtypes combined (30.85 per 100,000; 95% CI = 5.06-187.74). All studies reported more cases of dystonia in females. There was no significant difference in prevalence by subgroup analysis based on time of study publication (1985-2010 vs. 2010-2022). Subgroup analysis of differences in prevalence by dystonia subtype by continent using all studies published (1985-2022) revealed significant regional differences in the prevalence of cervical and laryngeal dystonia. Conclusion: The incidence and prevalence of idiopathic or inherited isolated dystonia in the last decade was not significantly different from earlier reports. Population-based studies across multiple geographic areas are needed to obtain a clearer understanding of the epidemiology of this condition.

Indexed as

blepharospasmdystoniaincidence studiesprevalence studies

Identifiers

PMID36247920
PMCPMC9547134

What OpenQuestion holds

Textmetadata
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.