The association between delusional-like experiences, and tobacco, alcohol or cannabis use: a nationwide population-based survey

Abstract Background: Previous population-based studies have found that delusional-like experiences (DLE) are prevalent in the community, and are associated with a wide range of mental health disorders including substance use. The aim of the study was to explore the association between DLE and three commonly used substances – tobacco, alcohol and cannabis. Methods: Subjects were drawn from the Australian National Survey of Mental Health and Wellbeing 2007. The Composite International Diagnostic Interview was used to identify DLE, common psychiatric disorders,