Callaghan, Dr. Russ

Russ Callaghan
PhD Professor
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Before arriving at the Northern Medical Program (NMP) in January 2013, Dr. Callaghan graduated with a PhD (Psychology) at the University of Toronto and worked as a Research Scientist at the Centre for Addiction and Mental Health – Canada’s largest psychiatric and addiction research and treatment hospital. Currently, Dr. Callaghan is a Professor in the NMP, and holds holds an Affiliate Professor position in the School of Population and Public Health at the University of British Columbia.

Research and Expertise

Over the last seven years or so, a major line of my research program has focused on estimating the impacts of cannabis use on human health.
This line of research has produced a series of studies assessing the relation between cannabis use (or cannabis-use disorders) and a range of health outcomes, including:
(1) persistent psychotic syndromes (Callaghan, et al., 2011);
(2) mortality patterns (Callaghan, et al., 2012);
(3) fatal and non-fatal motor vehicle collisions (Callaghan, et al., 2013);
(4) lung cancer (Callaghan et al., 2013);
(5) testicular cancer (Callaghan, et al., 2017); and
(6) a systematic review of cannabis use and development of cancer in humans (Callaghan, et al., 2017).

Ongoing and future work will assess the relation between cannabis use and the following outcomes: non-traffic injury (e.g., falls, assaults, suicide), all-cause mortality, and workplace injury.

Selected Publications

  • Callaghan RC, Cunningham JK, Verdichevski M, Sykes J, Jaffer RS, Kish SJ. All-cause mortality among individuals with disorders related to the use of methamphetamine: A comparative cohort study. Drug Alcohol Depend. 2012;125(3):290-294.
  • Callaghan RC, Cunningham JK, Allebeck P, et al. Methamphetamine use and schizophrenia: A population-based cohort study in California. Am J Psychiatry. 2011.
  • Callaghan RC, Gatley JM, Veldhuizen S, Lev-Ran S, Mann R, Asbridge M. Alcohol- or drug-use disorders and motor vehicle accident mortality: A retrospective cohort study. Accid Anal Prev. 2013;53:149-155.
  • Callaghan, RC, Allebeck, P, Sidorchuk, A (2013). Marijuana use and risk of lung cancer: a 40-year cohort study. Cancer Causes & Control, 24:1811-1820.
  • Callaghan, RC, Allebeck, P, Akre, O, McGlynn, KA, Sidorchuk, A. (2017; in press). Cannabis use and incidence of testicular cancer: a 42-year follow-up of Swedish men between 1970 and 2011. Cancer Epidemiology, Biomarkers & Prevention. 2017;26(11):1644-1652.
  • Callaghan RC, Verdichevski, M, Fyfe, T, Gatley, JM. Does cannabis use increase the risk of developing cancer in humans? A review of literature from 2004-2014. In V.R. Preedy (Ed.), Handbook of cannabis and related pathologies: Biology, diagnosis treatment and pharmacology. 2017. London: Elsevier.

For all of Dr. Russ Callaghan’s publications, please visit his Google Scholar page.


  • PhD (Psychology), University of Toronto, 2004
  • MA (Psychology), UBC, 1996
  • BA (Psychology), UBC, 1992