Editing Conversion disorder (section)

===Frequency===

Information on the frequency of conversion disorder is limited, in part due to the complexities of the diagnostic process. In neurology clinics, the reported [[prevalence]] of unexplained symptoms among new patients is very high, between 30 and 60%.<ref name="Carson_2000">{{cite journal |vauthors=Carson AJ, Ringbauer B, Stone J, McKenzie L, Warlow C, Sharpe M | title = Do medically unexplained symptoms matter? A prospective cohort study of 300 new referrals to neurology outpatient clinics | journal = J. Neurol. Neurosurg. Psychiatry | volume = 68 | issue = 2 | pages = 207–10 | year = 2000 | pmid = 10644789 | pmc = 1736779 | doi = 10.1136/jnnp.68.2.207}}</ref><ref name="pmid11448704">{{cite journal |vauthors=Nimnuan C, Hotopf M, Wessely S | title = Medically unexplained symptoms: an epidemiological study in seven specialities | journal = J Psychosom Res | volume = 51 | issue = 1 | pages = 361–7 | year = 2001 | pmid = 11448704 | doi = 10.1016/s0022-3999(01)00223-9}}</ref><ref name="pmid14999491">{{cite journal |vauthors=Snijders TJ, de Leeuw FE, Klumpers UM, Kappelle LJ, van Gijn J | title = Prevalence and predictors of unexplained neurological symptoms in an academic neurology outpatient clinic—an observational study | journal = J. Neurol. | volume = 251 | issue = 1 | pages = 66–71 | year = 2004 | pmid = 14999491 | doi = 10.1007/s00415-004-0273-y | s2cid = 8191138 }}</ref> However, diagnosis of conversion disorder typically required an additional psychiatric evaluation, and since few patients will see a psychiatrist,<ref name="pmid11110993">{{cite journal |vauthors=Crimlisk HL, Bhatia KP, Cope H, David AS, Marsden D, Ron MA | title = Patterns of referral in patients with medically unexplained motor symptoms | journal = J Psychosom Res | volume = 49 | issue = 3 | pages = 217–9 | year = 2000 | pmid = 11110993 | doi = 10.1016/s0022-3999(00)00167-7}}</ref> it is unclear what proportion of the unexplained symptoms are actually due to the disorder. In 1976, large scale psychiatric registers in the U.S. and Iceland found [[Incidence (epidemiology)|incidence rate]]s of 22 and 11 newly diagnosed cases per 100,000 person-years, respectively.<ref name="Stefansson">{{cite journal |vauthors=Stefánsson JG, Messina JA, Meyerowitz S | title = Hysterical neurosis, conversion type: clinical and epidemiological considerations | journal = [[Acta Psychiatr Scand]] | volume = 53 | issue = 2 | pages = 119–38 | year = 1976 | pmid = 1251758 | doi = 10.1111/j.1600-0447.1976.tb00066.x| s2cid = 39279206 }}</ref> In 2002, some estimates claim that in the general population, between 0.011% and 0.5% of the population have conversion disorder.<ref name="Tollison"/>