Cumulative effects of childhood traumas: polytraumatization, dissociation, and schizophrenia.

The study objective was to measure and compare the presence of childhood trauma and dissociative symptoms in a convenience sample of healthy controls and a probabilistic sample of outpatients with a diagnosis of schizophrenia. Patients reported more childhood trauma and more polytraumatization than the controls, and had a higher average dissociation score. In both cases and controls, the presence of childhood trauma was related to the intensity of the dissociation observed.