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The true [[prevalence]] of the disorder is hard to determine. The DSM notes the sharp rise in reported cases and states that, "Some believe that the greater awareness of the diagnosis among mental health professionals has resulted in the identification of cases that were previously undiagnosed. In contrast, others believe that the syndrome has been overdiagnosed in individuals who are highly suggestive."<ref name="DSM-IV-TR">American Psychiatric Association (2004) Diagnostic and Statistical Manual of Mental Disorders DSM-IV-TR (Text Revision). American Psychiatric Association. ISBN 0890420246</ref> The DSM does not give a figure. Reports in the literature are often given by advocates for the condition and figures from psychiatric populations (inpatients and outpatients) show a wide diversity from different countries: India (0.015% per year<ref name="pmid2589555">{{cite journal |author=Adityanjee, Raju GS, Khandelwal SK |title=Current status of multiple personality disorder in India |journal=The American journal of psychiatry |volume=146 |issue=12 |pages=1607-10 |year=1989 |pmid=2589555 |doi=}}</ref>), Switzerland (0.05%-0.1%<ref name="pmid1728191">{{cite journal |author=Modestin J |title=Multiple personality disorder in Switzerland |journal=The American journal of psychiatry |volume=149 |issue=1 |pages=88-92 |year=1992 |pmid=1728191 |doi=}}</ref>), China (0.4%<ref name="pmid16877651">{{cite journal |author=Xiao Z, Yan H, Wang Z, ''et al'' |title=Trauma and dissociation in China |journal=The American journal of psychiatry |volume=163 |issue=8 |pages=1388-91 |year=2006 |pmid=16877651 |doi=10.1176/appi.ajp.163.8.1388}}</ref>), Germany (0.9%<ref name="pmid11339321">{{cite journal |author=Gast U, Rodewald F, Nickel V, Emrich HM |title=Prevalence of dissociative disorders among psychiatric inpatients in a German university clinic |journal=J. Nerv. Ment. Dis. |volume=189 |issue=4 |pages=249-57 |year=2001 |pmid=11339321 |doi=}}</ref>), The Netherlands (2%<ref name="pmid10831486">{{cite journal |author=Friedl MC, Draijer N |title=Dissociative disorders in Dutch psychiatric inpatients |journal=The American journal of psychiatry |volume=157 |issue=6 |pages=1012-3 |year=2000 |pmid=10831486 |doi=}}</ref>), U.S. (6%,<ref name="pmid16585436">{{cite journal |author=Foote B, Smolin Y, Kaplan M, Legatt ME, Lipschitz D |title=Prevalence of dissociative disorders in psychiatric outpatients |journal=The American journal of psychiatry |volume=163 |issue=4 |pages=623-9 |year=2006 |pmid=16585436 |doi=10.1176/appi.ajp.163.4.623}}</ref> Approx., 6-8%,<ref name="pmid1521791">{{cite journal |author=Ross CA, Anderson G, Fleisher WP, Norton GR |title=Dissociative experiences among psychiatric inpatients |journal=General hospital psychiatry |volume=14 |issue=5 |pages=350-4 |year=1992 |pmid=1521791 |doi=}}</ref> 10%<ref name="pmid3970252">{{cite journal |author=Bliss EL, Jeppsen EA |title=Prevalence of multiple personality among inpatients and outpatients |journal=The American journal of psychiatry |volume=142 |issue=2 |pages=250-1 |year=1985 |pmid=3970252 |doi=}}</ref>), and Turkey (14%<ref name="pmid17189745">{{cite journal |author=Sar V, Koyuncu A, Ozturk E, ''et al'' |title=Dissociative disorders in the psychiatric emergency ward |journal=General hospital psychiatry |volume=29 |issue=1 |pages=45-50 |year=2007 |pmid=17189745 |doi=10.1016/j.genhosppsych.2006.10.009}}</ref>). Figures from the general population show less diversity: China (0%<ref name="pmid16877651">{{cite journal |author=Xiao Z, Yan H, Wang Z, ''et al'' |title=Trauma and dissociation in China |journal=The American journal of psychiatry |volume=163 |issue=8 |pages=1388-91 |year=2006 |pmid=16877651 |doi=10.1176/appi.ajp.163.8.1388}}</ref>), Turkey (0.4% for a general sample<ref name="pmid10080263">{{cite journal |author=Akyüz G, Doğan O, Sar V, Yargiç LI, Tutkun H |title=Frequency of dissociative identity disorder in the general population in Turkey |journal=Comprehensive psychiatry |volume=40 |issue=2 |pages=151-9 |year=1999 |pmid=10080263 |doi=}}</ref> and 1.1% for a female sample<ref name="pmid17157389">{{cite journal |author=Sar V, Akyüz G, Doğan O |title=Prevalence of dissociative disorders among women in the general population |journal=Psychiatry research |volume=149 |issue=1-3 |pages=169-76 |year=2007 |pmid=17157389 |doi=10.1016/j.psychres.2006.01.005}}</ref>), and Canada (1%<ref name="pmid1946021">{{cite journal |author=Ross CA |title=Epidemiology of multiple personality disorder and dissociation |journal=Psychiatr. Clin. North Am. |volume=14 |issue=3 |pages=503-17 |year=1991 |pmid=1946021 |doi=}}</ref>). |
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The true [[prevalence]] of the disorder is hard to determine. The DSM notes the sharp rise in reported cases and states that, "Some believe that the greater awareness of the diagnosis among mental health professionals has resulted in the identification of cases that were previously undiagnosed. In contrast, others believe that the syndrome has been overdiagnosed in individuals who are highly suggestive."<ref name="DSM-IV-TR">American Psychiatric Association (2004) Diagnostic and Statistical Manual of Mental Disorders DSM-IV-TR (Text Revision). American Psychiatric Association. ISBN 0890420246</ref> The DSM does not give a figure. Reports in the literature are often given by advocates for the condition and figures from psychiatric populations (inpatients and outpatients) show a wide diversity from different countries: India (0.015% per year<ref name="pmid2589555">{{cite journal |author=Adityanjee, Raju GS, Khandelwal SK |title=Current status of multiple personality disorder in India |journal=The American journal of psychiatry |volume=146 |issue=12 |pages=1607-10 |year=1989 |pmid=2589555 |doi=}}</ref>), Switzerland (0.05%-0.1%<ref name="pmid1728191">{{cite journal |author=Modestin J |title=Multiple personality disorder in Switzerland |journal=The American journal of psychiatry |volume=149 |issue=1 |pages=88-92 |year=1992 |pmid=1728191 |doi=}}</ref>), China (0.4%<ref name="pmid16877651">{{cite journal |author=Xiao Z, Yan H, Wang Z, ''et al'' |title=Trauma and dissociation in China |journal=The American journal of psychiatry |volume=163 |issue=8 |pages=1388-91 |year=2006 |pmid=16877651 |doi=10.1176/appi.ajp.163.8.1388}}</ref>), Germany (0.9%<ref name="pmid11339321">{{cite journal |author=Gast U, Rodewald F, Nickel V, Emrich HM |title=Prevalence of dissociative disorders among psychiatric inpatients in a German university clinic |journal=J. Nerv. Ment. Dis. |volume=189 |issue=4 |pages=249-57 |year=2001 |pmid=11339321 |doi=}}</ref>), The Netherlands (2%<ref name="pmid10831486">{{cite journal |author=Friedl MC, Draijer N |title=Dissociative disorders in Dutch psychiatric inpatients |journal=The American journal of psychiatry |volume=157 |issue=6 |pages=1012-3 |year=2000 |pmid=10831486 |doi=}}</ref>), U.S. (6%,<ref name="pmid16585436">{{cite journal |author=Foote B, Smolin Y, Kaplan M, Legatt ME, Lipschitz D |title=Prevalence of dissociative disorders in psychiatric outpatients |journal=The American journal of psychiatry |volume=163 |issue=4 |pages=623-9 |year=2006 |pmid=16585436 |doi=10.1176/appi.ajp.163.4.623}}</ref> Approx., 6-8%,<ref name="pmid1521791">{{cite journal |author=Ross CA, Anderson G, Fleisher WP, Norton GR |title=Dissociative experiences among psychiatric inpatients |journal=General hospital psychiatry |volume=14 |issue=5 |pages=350-4 |year=1992 |pmid=1521791 |doi=}}</ref> 10%<ref name="pmid3970252">{{cite journal |author=Bliss EL, Jeppsen EA |title=Prevalence of multiple personality among inpatients and outpatients |journal=The American journal of psychiatry |volume=142 |issue=2 |pages=250-1 |year=1985 |pmid=3970252 |doi=}}</ref>), and Turkey (14%<ref name="pmid17189745">{{cite journal |author=Sar V, Koyuncu A, Ozturk E, ''et al'' |title=Dissociative disorders in the psychiatric emergency ward |journal=General hospital psychiatry |volume=29 |issue=1 |pages=45-50 |year=2007 |pmid=17189745 |doi=10.1016/j.genhosppsych.2006.10.009}}</ref>). Figures from the general population show less diversity: China (0%<ref name="pmid16877651">{{cite journal |author=Xiao Z, Yan H, Wang Z, ''et al'' |title=Trauma and dissociation in China |journal=The American journal of psychiatry |volume=163 |issue=8 |pages=1388-91 |year=2006 |pmid=16877651 |doi=10.1176/appi.ajp.163.8.1388}}</ref>), Turkey (0.4% for a general sample<ref name="pmid10080263">{{cite journal |author=Akyüz G, Doğan O, Sar V, Yargiç LI, Tutkun H |title=Frequency of dissociative identity disorder in the general population in Turkey |journal=Comprehensive psychiatry |volume=40 |issue=2 |pages=151-9 |year=1999 |pmid=10080263 |doi=}}</ref> and 1.1% for a female sample<ref name="pmid17157389">{{cite journal |author=Sar V, Akyüz G, Doğan O |title=Prevalence of dissociative disorders among women in the general population |journal=Psychiatry research |volume=149 |issue=1-3 |pages=169-76 |year=2007 |pmid=17157389 |doi=10.1016/j.psychres.2006.01.005}}</ref>), and Canada (1%<ref name="pmid1946021">{{cite journal |author=Ross CA |title=Epidemiology of multiple personality disorder and dissociation |journal=Psychiatr. Clin. North Am. |volume=14 |issue=3 |pages=503-17 |year=1991 |pmid=1946021 |doi=}}</ref>). |
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