Editing Sleep paralysis (section)

== Epidemiology ==
Sleep paralysis is experienced equally in males and females.<ref name=Bri2011 /><ref name=Dauvilliers>{{cite journal|last1=Dauvilliers |first1=Y. |last2=Billiard|first2=M. |last3=Montplaisir|first3=J.|title=Clinical aspects and pathophysiology of narcolepsy |journal=Clinical Neurophysiology|year=2003 |volume=114 |pages=2000–2017 |doi=10.1016/S1388-2457(03)00203-7 |pmid=14580598|issue=11|s2cid=45340130 }}</ref> Lifetime prevalence rates derived from 35 aggregated studies indicate that approximately 8% of the general population, 28% of students, and 32% of psychiatric patients experience at least one episode of sleep paralysis at some point in their lives.<ref name=Bri2011 /> Rates of recurrent sleep paralysis are not as well known, but 15–45% of those with a lifetime history of sleep paralysis may meet diagnostic criteria for Recurrent Isolated Sleep Paralysis.<ref name="FISP" /><ref name=":0" /> In surveys from Canada, China, England, Japan and Nigeria, 20% to 60% of individuals reported having experienced sleep paralysis at least once in their lifetime.<ref name=Blackmore2002>{{cite journal | author = Blackmore Susan J., Parker Jennifer J. | year = 2002 | title = Comparing the Content of Sleep Paralysis and Dream Reports | journal = Dreaming | volume = 12 | issue = 1 | pages = 45–59 | doi = 10.1023/A:1013894522583 | s2cid = 143952687 | url = http://www.susanblackmore.co.uk/Articles/PDFs/Dreaming%202002.pdf | url-status = live | archive-url = https://web.archive.org/web/20160429025711/http://www.susanblackmore.co.uk/Articles/PDFs/Dreaming%202002.pdf | archive-date = 2016-04-29 }}</ref> In general, non-whites appear to experience sleep paralysis at higher rates than whites, but the magnitude of the difference is rather small.<ref name=Bri2011 /> Approximately 36% of the general population that experiences isolated sleep paralysis, develop it between 25 and 44 years of age.<ref name=Ohayon>{{cite journal |last1=Ohayon|first1=M. |last2=Zulley|first2=J. |last3=Guilleminault|first3=C. |last4=Smirne|first4=S. |title=Prevalence and pathologic associations of sleep paralysis in the general population |journal=Neurology |year=1999 |volume=52 |pages=1194–2000 |doi=10.1212/WNL.52.6.1194 |pmid=10214743 |issue=6|s2cid=22288238 }}</ref>

Isolated sleep paralysis is commonly seen in patients that have been diagnosed with narcolepsy. Approximately 30–50% of people that have been diagnosed with narcolepsy, have experienced sleep paralysis as an auxiliary symptom. A majority of the individuals who have experienced sleep paralysis, have sporadic episodes that occur once a month to once a year. Only 3% of individuals who experience sleep paralysis that is not associated with a [[neuromuscular disorder]] have nightly episodes.<ref name=Ohayon />