ArticleNeuroepidemiology2026
Self-Reported Dystonia and Dystonia on Neurological Examination: Prevalence and Concordance across Time in a Prospectively Followed Essential Tremor Cohort.
Article in Neuroepidemiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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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.
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Who cites it
1 citing paper in PubMed.
- Does the Severity of Arm Tremor in Essential Tremor Correlate with Impaired Balance?Tremor and other hyperkinetic movements (New York, N.Y.) · 2026Article
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Authors and funding
4 authors.
Funding
Abstract
<p>Introduction: Screening questions are important in identifying subgroups of individuals within a target population. Dystonic movements and postures are not uncommon in patients with essential tremor (ET). There is a gap in knowledge - no studies have assessed the validity of a self-report of dystonia in ET patients. We assessed the concordance between self-reported dystonia and the presence or absence of dystonia on examination (DOE).
methodsWe obtained self-report data from 274 ET cases in a serial study with up to five follow-up evaluations. At each assessment, participants could self-report dystonia, and they underwent a detailed neurological examination, from which a movement disorders neurologist assessed for the presence of DOE.
resultsAcross time, the prevalence of self-reported dystonia and DOE ranged from 0.0% to 4.3% and 8.6% to 17.5%, respectively. There were 74 cases with either self-reported dystonia or DOE; in only 3 (4.1%) was there a positive concordance between the two at each of their evaluations. Values for sensitivity ranged from 0.0% to 40%; specificity from 96.1% to 100%; positive predictive value from 0.0% to 67.0% (median 30.0%); and negative predictive value from 83.1% to 94.4%.
conclusionOur study provides important insights into the validity of self-report data on dystonia in ET and the prevalence of DOE in ET. Our findings suggest that self-reported dystonia was not a valid means to identify DOE in ET. </p>.
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