Association of pre-onset cannabis, alcohol, and tobacco use with age at onset of prodrome and age at onset of psychosis in first-episode patients.

Abstract

OBJECTIVE Several reports suggest that cannabis use is associated with an earlier age at onset of psychosis, although not all studies have operationalized cannabis use as occurring prior to onset of symptoms. This study addressed whether pre-onset cannabis use, alcohol use, and tobacco use are associated with an earlier age at onset of prodromal and… (More)
DOI: 10.1176/appi.ajp.2009.09030311

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