What is the prevalence of narcolepsy in the US?

Updated: Sep 04, 2019
  • Author: Sagarika Nallu, MD; Chief Editor: Selim R Benbadis, MD  more...
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The prevalence of narcolepsy in the US is 0.02-0.18%, which is comparable to that of multiple sclerosis. [39, 40] The frequency among first-degree relatives is 1-2% (10-40 times greater than that in the general population). The reported prevalence of narcolepsy in select populations is as follows:

  • North American blacks, 0.02%

  • Northern Californians, 0.05%

  • Southern Californian Caucasians, 0.07%

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