Incidence of psychogenic seizures in adults: a population-based study in Iceland

Epilepsia. 1998 Jul;39(7):749-52. doi: 10.1111/j.1528-1157.1998.tb01161.x.


Purpose: We wished to determine the incidence of psychogenic nonepileptic (NES) seizures in a population-based study.

Methods: Cases were identified through review of the results of all long-term video-EEG studies made in Iceland during the study period.

Results: The incidence of NES was 1.4 in 100,000 person-years of observation. Age-specific incidence was highest in the youngest age group (age 15-24 years) and decreased thereafter. A strong female preponderance was observed.

Conclusions: The incidence of NES is equal to almost 4% of that reported for epilepsy from Iceland for persons aged > or = 15 years. For people aged 15-24 years, the incidence of NES is equal to approximately 5% of the incidence of epilepsy. Half the patients also had epilepsy.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • Age Distribution
  • Age Factors
  • Electroencephalography / methods
  • Epilepsy / epidemiology
  • Female
  • Health Surveys
  • Humans
  • Iceland / epidemiology
  • Incidence
  • Male
  • Middle Aged
  • Seizures / epidemiology*
  • Sex Distribution
  • Videotape Recording