Prevalence of essential tremor in the Territory of Lake Trasimeno, Italy: Results of a population-based study

Maria Luisa Mancini, Fabrizio Stracci, Nicola Tambasco, Paola Sarchielli, Aroldo Rossi, Paolo Calabresi

Research output: Contribution to journalArticlepeer-review

Abstract

Because of the great variability in previous epidemiological data, and in light of the more accurate definition and diagnostic criteria recently formulated, we designed the present study to evaluate the prevalence of essential tremor (ET) in an Italian population. The study population included 13,604 individuals, who represented all patients of 11 family doctors working in the Territory of Lake Trasimeno in central Italy. Assessment of the sample and selection of the suspected cases were carried out by the same family doctors, previously trained to apply the inclusion and exclusion criteria for the definition of ET based on the Classification Criteria of the Movement Disorder Society (1998) and the Guidelines of the Ad Hoc Committee (2000). The total population was assessed over a period of 12 months. The age-adjusted prevalence of ET was 1.21% (95% confidence interval, 0.83-1.76). The probability of presenting with ET tended to increase with age and males showed a 50% greater risk for developing ET (male/female ratio = 1.5 for each age class). Our results are in line with the most recent epidemiological findings, which suggest a lower prevalence of ET than in older studies. These results can be attributed to the application of more stringent diagnostic criteria.

Original languageEnglish
Pages (from-to)540-545
Number of pages6
JournalMovement Disorders
Volume22
Issue number4
DOIs
Publication statusPublished - Mar 15 2007

Keywords

  • Essential tremor
  • Italy
  • Lake Trasimeno territory
  • Population-based study
  • Prevalence

ASJC Scopus subject areas

  • Clinical Neurology
  • Neuroscience(all)

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