Prevalence of sleep disorders in the Los Angeles metropolitan area.

@article{Bixler1979PrevalenceOS,
  title={Prevalence of sleep disorders in the Los Angeles metropolitan area.},
  author={Edward O. Bixler and Anthony Kales and Constantin R. Soldatos and Joyce D. Kales and Shevy Healey},
  journal={The American journal of psychiatry},
  year={1979},
  volume={136 10},
  pages={
          1257-62
        }
}
The authors determined the prevalence of sleep disorders in a general population through a survey of 1,006 representative households in the Los Angeles metropolitan area. They found an overall prevalence of current or previous sleep disorders in adults of 52.1%. Specifically, they found a 42.5% prevalence of insomnia, 11.2% of nightmares, 7.1% of excessive sleep, 5.3% of sleeptalking, and 2.5% of sleepwalking. These conditions were often chronic and usually started early in life. Insomnia was… 
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