Evidence map›Paper›PMID 33880180›Full record

SynthesisJournal of global health2021

The global prevalence of essential tremor, with emphasis on age and sex: A meta-analysis.

Peige Song, Yan Zhang, Mingming Zha, Qingwen Yang, Xinxin Ye, Qian Yi, Igor Rudan, Global Health Epidemiology Reference Group (GHERG)

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of global health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 4 pooled it
7.5field-weighted citation impact, top 2% of its field
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

71 citing papers in PubMed, 4 syntheses or guidelines pooled it, 108 citations in OpenAlex.

  1. Pooled it
  2. Diagnostic Accuracy of the Archimedes Spiral Test for Essential Tremor: A Meta-Analysis.Tremor and other hyperkinetic movements (New York, N.Y.) · 2026
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  18. An Exploratory Analysis of Essential Tremor and Associated Phenotypes.Tremor and other hyperkinetic movements (New York, N.Y.) · 2026
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11 more citing papers are in PubMed but not listed here.

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

8 authors at 4 institutions in 2 countries.

Peige SongSchool of Public Health, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Yan ZhangFaculty of Life Science and Medicine, Kings College London, London, UK.
Mingming ZhaMedical School Southeast University, Nanjing, Jiangsu, China.
Qingwen YangMedical School Southeast University, Nanjing, Jiangsu, China.
Xinxin YeSchool of Public Health, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Qian YiSchool of Public Health, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Igor RudanCentre for Global Health, Usher Institute, University of Edinburgh, Edinburgh, UK.
Global Health Epidemiology Reference Group (GHERG)
Zhejiang University · CNSoutheast University · CNKing's College London · GBUniversity of Edinburgh · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEssential tremor (ET) is one of the most common neurological disorders that impairs quality of life and leads to disability and social handicap. It was estimated that approximate 0.9% of people worldwide were affected by ET. The last decade has seen new investigations on the epidemiology of ET, enabling us to provide an up-to-date estimation of ET prevalence, with emphasis on age and sex.

methodsWe searched PubMed, Medline, Embase and Global Health for studies that reported the prevalence of ET in the general population. Potential sources of heterogeneity were examined by age-adjusted meta-regression. The age- and sex-specific prevalence of ET was constructed with a multilevel mixed-effects meta-regression.

resultsA total of 29 articles were included in our systematic review and meta-analysis. The prevalence of ET increased dramatically with advancing age, where the prevalence estimate in people aged under 20 years was 0.04% (95% confidence interval [CI] = 0.00-0.29) and that in elderly aged 80 years and above was 2.87% (95% CI = 1.07-7.49). ET was consistently more common in males than in females. In 2020, the overall prevalence of ET in the general population was 0.32% (95% CI = 0.12-0.91), and the prevalence was higher in males (0.36%, 95% CI = 0.14-1.03) than in females (0.28%, 95% CI = 0.11-0.79). In 2020, the number of people affected by ET was 24.91million (95% CI = 9.51-70.92), among whom 56% were males.

conclusionsThis study provides an up-to-date estimation of ET prevalence in the general population throughout the whole life span, with emphasis on age and sex. The adoption of an internationally acknowledged diagnostic strategy is prompted in future epidemiological investigations. PROTOCOL REGISTRATION: PROSPERO (CRD42020203979).

Indexed as

Essential TremorPersons with DisabilitiesAdultAgedFemaleGlobal HealthHumansMalePrevalenceQuality of LifeYoung Adult

Identifiers

PMID33880180
PMCPMC8035980
OpenAlexW3156518756

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.