title: Axis-I comorbidity in female patients with dissociative identity disorder and dissociative identity disorder not otherwise specified.
abstract: The aim of this study was to investigate axis-I comorbidity in patients with dissociative identity disorder (DID) and dissociative disorder not otherwise specified (DDNOS). Using the Diagnostic Interview for Psychiatric Disorders, results from patients with DID (n = 44) and DDNOS (n = 22) were compared with those of patients with posttraumatic stress disorder (PTSD) (n = 13), other anxiety disorders (n = 14), depression (n = 17), and nonclinical controls (n = 30). No comorbid disorders were found in nonclinical controls. The average number of comorbid disorders in patients with depression or anxiety was 0 to 2. Patients with dissociative disorders averagely suffered from 5 comorbid disorders. The most prevalent comorbidity in DDNOS and DID was PTSD. Comorbidity profiles of patients with DID and DDNOS were very similar to those in PTSD (high prevalence of anxiety, somatoform disorders, and depression), but differed significantly from those of patients with depression and anxiety disorders. These findings confirm the hypothesis that PTSD, DID, and DDNOS are phenomenologically related syndromes that should be summarized within a new diagnostic category.
authors.affiliation: Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany. frod.psy@hildesheim.ameos.de
authors.forename: Frauke
authors.initials: F
authors.lastname: Rodewald
authors.forename: Claudia
authors.initials: C
authors.lastname: Wilhelm-Göling
authors.forename: Hinderk M
authors.initials: HM
authors.lastname: Emrich
authors.forename: Luise
authors.initials: L
authors.lastname: Reddemann
authors.forename: Ursula
authors.initials: U
authors.lastname: Gast
mesh_terms: D000328:Adult; D015897:Comorbidity; D004213:Dissociative Disorders / Q000175:diagnosis* / Q000453:epidemiology*; D009105:Dissociative Identity Disorder / Q000175:diagnosis* / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D013001:Somatoform Disorders / Q000175:diagnosis / Q000453:epidemiology; D013313:Stress Disorders, Post-Traumatic / Q000175:diagnosis / Q000453:epidemiology