Evidence map›Paper›PMID 25967236›Full record

ArticleNeuroepidemiology2015

Familial versus Sporadic Essential Tremor: What Patterns Can One Decipher in Age of Onset?

Elan D Louis, Lorraine N Clark, Ruth Ottman

Abstract read
In one paragraph

Article in Neuroepidemiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. How Common is Essential Tremor? Update on the Worldwide Prevalence of Essential Tremor.Tremor and other hyperkinetic movements (New York, N.Y.) · 2021
    Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Genetic Testing Preferences of Individuals in Families with Essential Tremor.Tremor and other hyperkinetic movements (New York, N.Y.) · 2018
    Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. 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

3 authors.

Elan D LouisDepartment of Neurology, Yale School of Medicine, Yale University, New Haven, Conn., USA.
Lorraine N Clark
Ruth Ottman

Funding

Clinical Pathological Study of Cognitive Impairment in Essential TremorR01NS086736 · NINDS · YALE UNIVERSITY · PI COSENTINO, STEPHANIE ANN, LOUIS, ELAN D · 2014 to 2023
$8.1M
ENVIRONMENTAL EPIDEMIOLOGY OF ESSENTIAL TREMORR01NS039422 · NINDS · YALE UNIVERSITY · PI LOUIS, ELAN D · 2000 to 2013
$7.7M
Identification of Susceptibility Genes for Essential TremorR01NS073872 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI CLARK, LORRAINE N, LOUIS, ELAN D · 2011 to 2019
$7.4M
GENETIC EPIDEMIOLOGY OF PARKINSONS DISEASER01NS036630 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MARDER, KAREN S · 1998 to 2008
$6.8M
NEUROEPIDEMIOLOGY TRAINING PROGRAMT32NS007153 · NINDS · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI GU, YIAN, WILLEY, JOSHUA ZEBADIAH · 1987 to 2023
$6.2M
Pathogenesis Of Essential Tremor: Cerebellar MetabolismR01NS042859 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI LOUIS, ELAN D · 2003 to 2012
$4.9M
in Vivo Quantification of Cerebellar GABA and NAA in Essential TremorR01NS085136 · NINDS · YALE UNIVERSITY · PI MATUSKEY, DAVID A · 2013 to 2017
$3.3M
Essential Tremor: Gene expression profiling in cerebellar Purkinje cellsR21NS077094 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI FAUST, PHYLLIS L · 2011 to 2012
$440k
NINDS NIH HHS R01 NS036630NINDS NIH HHS R01 NS039422NINDS NIH HHS R01 NS042859NINDS NIH HHS R01 NS073872NINDS NIH HHS R01 NS085136NINDS NIH HHS R01 NS086736NINDS NIH HHS R01 NS36630NINDS NIH HHS R01 NS39422NINDS NIH HHS R21 NS077094NINDS NIH HHS T32 NS007153NINDS NIH HHS T32 NS07153-24
6 · The paper itself

Abstract

backgroundEssential tremor (ET) is a very prevalent neurological disease. Although familial and sporadic ET cases are assumed to have different age at onset distributions, no detailed study of this question has been carried out.

methodsUsing a carefully characterized sample of 376 ET cases (232 (61.7%) familial) enrolled in a clinical-epidemiological study, we contrasted the age of onset distributions in familial versus sporadic ET.

resultsFamilial ET had a lower age at onset distribution, regardless of the current age. The majority (71 (86.6%) of 82) of ET cases that appeared during childhood were familial rather than sporadic. Additionally, the onset of ET occurred after age 40 in a majority of cases (125 (53.9%) of 232 with familial ET and 118 (81.9%) of 144 with sporadic ET), and in approximately one-quarter to one-half of cases, after age 60.

conclusionsThe age of onset of ET differs between familial and sporadic ET and furthermore, is variable within each of these groups. The onset of ET during childhood is usually familial, and the small number of identified exceptions could be due to de novo mutations. Understanding the heterogeneity in onset age will provide insights into the nature of underlying etiological and patho-biological processes about which little is presently known.

Indexed as

AdolescentAdultAgedAged, 80 and overAge DistributionAge of OnsetChildEssential TremorFemaleHumansMaleMiddle AgedPrevalenceYoung Adult

Identifiers

PMID25967236
PMCPMC4764084

What OpenQuestion holds

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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.