Insomnia: Epidemiology, characteristics, and consequences

Nov 25, 2003Clinical cornerstone

Insomnia: how common it is, its features, and its effects

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Abstract

Chronic insomnia affects 10% of the adult population.

  • Primary insomnia may occur in 25% of individuals with chronic insomnia.
  • Insomnia is linked to daytime consequences such as sleepiness and impaired psychomotor performance.
  • Chronic insomnia is associated with absenteeism, frequent accidents, and increased health care utilization.
  • The risk of developing depression is significantly higher in individuals with insomnia.
  • Factors such as age, sex, medical conditions, psychiatric diseases, and shift work could increase the risk of chronic insomnia.

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