Sleep walking research: 29% of adults have experienced it in their lifetime
For this study, the first to use a large, representative sample of the U.S. general population to demonstrate the number of sleepwalkers, the researchers also aimed to evaluate the importance of medication use and mental disorders associated with sleepwalking. Ohayon and his colleagues secured a sample of 19,136 individuals from 15 states and then used phone surveys to gather information on participants' mental health, medical history and medication use.
The researchers determined that as many as 3.6 percent of the sample reported at least one episode of sleepwalking in the previous year, with 1 percent saying they had two or more episodes in a month. Because of the number of respondents who reported having episodes during childhood or adolescence, lifetime prevalence of sleepwalking was found to be 29.2 percent.
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