John L. Horwood, PhD Biography
- Title:
- Research Associate Professor at the Christchurch School of Medicine & Health Sciences at the University of Otago
- Position:
- Not Clearly Pro or Con to the question "Should Marijuana Be a Medical Option?"
- Reasoning:
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“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
- Involvement and Affiliations:
-
- Research Associate Professor, Christchurch School of Medicine & Health Sciences, University of Otago, New Zealand
- Director and Biostatistician, Christchurch Health and Development Study Research Unit
- Former 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
- Education:
-
- PhD, School unknown
- Other:
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- None found