Motivations for cannabis use in youth with first episode psychosis: a scoping review

Background: Youth in First Episode Psychosis (FEP) programs have high rates of cannabis use and consumption is associated with negative treatment outcomes. Motivations for use in this group are under-studied and investigating reasons for use can aid in the development of engagement strategies. Methods: This scoping review uses the framework proposed by Arksey & O'Malley and PRISMA ScR to map the research in this area, synthesize common themes, and identify gaps in knowledge. Eleven studies examining the motivations for cannabis use among youth with FEP met eligibility criteria. Results: This group uses cannabis for social reasons, to relax, enhance activities, cope with unpleasant affect, alter perceptions, improve sleep, and manage symptoms. Four studies identified risk perceptions and three distinguished reasons for starting and continued consumption. The effects of consumption on social relationships were under-studied, as were perspectives in jurisdictions where cannabis is legal. Most studies did not report on the racial background of participants and minority groups were underrepresented. Conclusion: Assessing social dynamics and perceptions toward the link between cannabis and psychosis can enhance interventions with this group. Those using cannabis to manage negative emotions can benefit from development of a broader range of coping skills.