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To estimate the prevalence of dissociative disorders in a day hospital and examine their relation to traumatic experiences, trained clinicians evaluated 70 of 229 patients consecutively admitted to an acute care day hospital. They used the Mini-Structured Clinical Interview for DSM-III-R Dissociative Disorders and the Traumatic Experience Questionnaire. Six of the 70 patients (9 percent) received a definite diagnosis of a dissociative disorder. Five of the six patients reported a childhood history of sexual or physical abuse. The results show that dissociative disorders are not rare among general psychiatric patients in a day hospital setting and are associated with histories of childhood trauma.
Lussier et al. (Sat,) studied this question.