Last updated on: 9/10/2007 | Author: ProCon.org

David M. Fergusson, PhD Biography

Title:
Emeritus Professor at the University of Otago at Christchurch
Position:
Not Clearly Pro or Con to the question "Should Marijuana Be a Medical Option?"
Reasoning:

“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:
  • Emeritus Professor, University of Otago at Christchurch
  • Former Research Professor, Department of Psychological Medicine, Christchurch School of Medicine & Health Sciences, University of Otago, New Zealand
  • Founder and Executive Director of the Christchurch Health and Development Study, Christchurch School of Medicine & Health Sciences, University of Otago
  • Keynote Address speaker “The Development and Evaluation of Early Start” at the New Zealand Early Childhood Research 10th Annual Conference 2006
  • Recipient, gold medal award for Excellence in Research at the School of Medicine & Health Sciences, University of Otago
Education:
  • PhD, school unknown
Other:
  • Founder of the Christchurch Health and Development Study, a 35 year study of a birth cohort of 1265 children born in the Christchurch region in mid-1977.
Quoted in:
  1. Does Marijuana Use Increase the Risk of Psychosis (Including Schizophrenia)?