Associations among maltreatment and traumatic experiences in childhood and adolescence, later substance use, and subsequent mental health outcomes for individuals with schizophrenia-spectrum disorders have been initially explored in previous studies; however, research on these factors in socially disadvantaged patients with first-episode psychosis is unavailable. This exploratory, correlational analysis examined associations between maltreatment and trauma-related variables (e.g., traumatic experiences, parental harsh discipline, violence exposure) and: social variables (years of education attained and extent of Axis IV psychosocial problems at initial hospitalization), substance abuse (age at initiation of alcohol and cannabis use, as well as estimates of lifetime intake of both), and positive and negative symptom severity. Rates of childhood abuse and traumatic events were remarkably high in the sample. Years of educational attainment and number of Axis IV psychosocial problems were substantially correlated with several domains of childhood abuse/traumatic events. Age at initiation of alcohol and cannabis use, and lifetime alcohol and cannabis intake, were correlated with a number of trauma domains. Whereas positive symptom severity was correlated with four of the trauma variables, negative symptom severity was correlated only with prior emotional neglect. These results provide insights into the relations among childhood traumatic events, substance use, and clinical features of first-episode psychosis, creating hypotheses for future research.

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