In a study of 11,363 individuals with no psychotic disorder, cannabis use increased the risk of psychosis by 11 fold for ages 12 – 19. I spoke with master behind the research.
André McDonald, PhD, MPH, is an epidemiologist and postdoctoral fellow at McMaster University’s Peter Boris Centre for Addictions Research and Michael G. DeGroote Centre for Medicinal Cannabis Research. Dr. McDonald’s research focuses on the intersection between mental health and addictions among youth. Currently, his primary interest is in understanding the link between youth cannabis use and risk of mood, anxiety, and psychotic disorders. Dr. McDonald is supported by a Fellowship from the Canadian Institutes of Health Research (CIHR).
Dr. McDonald completed his PhD in epidemiology and MPH in social and behavioural health sciences at the University of Toronto while working at the Centre for Addiction and Mental Health. Prior to his graduate studies, he worked in Nunavut (Canada’s northernmost territory) on mental health and addictions issues among Inuit. Overall, he has over 10 years of experience working in the field of public health in both research and policy roles.
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