Professor of Psychological Medicine at the Christchurch School of Medicine & Health Sciences at the University of Otago
Not Clearly Pro or Con to the question "Should Marijuana Be a Medical Option?"
"Regression models adjusting for observed and non-observed confounding suggested that daily users of cannabis had rates of psychotic symptoms that were between 1.6 and 1.8 times higher (P<0.001) than non-users of cannabis....
The results of the present study add to a growing body of evidence suggesting that regular cannabis use may increase risks of psychosis.
The present study suggests that:
A. the association between cannabis use and psychotic symptoms is unlikely to be due to confounding factors; and
B. the direction of causality is from cannabis use to psychotic symptoms."
"Tests of Causal Likages Between Cannabis Use and Psychotic Symptoms," Addiction, 2005
Experts PhD's and JD's (lawyers) with significant post-doctoral involvement in medical marijuana issues; judges who have presided over medical marijuana cases. [Note: Experts definition varies by site.]
Involvement and Affiliations:
Professor of Psychological Medicine, Christchurch School of Medicine & Health Sciences, University of Otago, New Zealand
Senior Research Fellow of the Christchurch Health and Development Study
Gold medal award for excellence in research at the School of Medicine & Health Sciences, University of Otago