Clinical and psychosocial significance of trauma history in schizophrenia spectrum disorders.

Interest has arisen in the role stressors play in the development and outcome of schizophrenia. This article examines one such stressor - trauma experienced prior to the onset of illness. We discuss research on the incidence, types and correlates of trauma in schizophrenia, and review work suggesting trauma may increase risk for schizophrenia. Studies are further detailed that have examined links between trauma and heightened levels of positive symptoms and anxiety, and poorer social, vocational and treatment outcomes. Here, literature on approaches to addressing trauma among persons with schizophrenia is presented, along with a commentary that points to the need for research on how trauma might increase the risk for the development of schizophrenia and worsen the symptoms and treatment outcome of individuals in recovery from this illness.