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Advocating for Evidence Based Marijuana Policy

Tag Archives: Substitution Effect

Daily marijuana use among U.S. college students highest since 1980

Daily marijuana use among U.S. college students highest since 1980

Source:
University of Michigan. (2015, September 1). Daily marijuana use among U.S. college students highest since 1980. ScienceDaily. Retrieved September 2, 2015 from http://www.sciencedaily.com/releases/2015/09/150901095321.htm
ScienceDaily Summary:
Daily marijuana use among the nation’s college students is on the rise, surpassing daily cigarette smoking for the first time in 2014.

WTR-RI Research and Analysis Note:
This analysis of trends in the Monitoring the Future Study data includes trends in prescription   drug, opiates, cocaine, alcohol and several other abusive substance categories.  The full report is available online at: http://monitoringthefuture.org/pubs/monographs/mtf-vol2_2014.pdf


 

Up in smoke or bottoms up: How policy could affect substance abuse

Up in smoke or bottoms up: How policy could affect substance abuse

Source:
Springer Science+Business Media. (2015, January 12). Up in smoke or bottoms up: How policy could affect substance abuse. ScienceDaily. Retrieved July 8, 2015 from http://www.sciencedaily.com/releases/2015/01/150112181317.htm
ScienceDaily Summary:
Half of young drivers who died in car crashes in American states such as California, Hawaii and West Virginia were under the influence of either alcohol or marijuana, or both. This is the story told by the statistics recording fatal road accidents involving 16- to 25-year-olds in nine US states.

Journal Reference:

  1. Katherine M Keyes, Joanne E Brady, Guohua Li. Effects of minimum legal drinking age on alcohol and marijuana use: evidence from toxicological testing data for fatally injured drivers aged 16 to 25 yearsInjury Epidemiology, 2015; 2 (1) DOI: 10.1186/s40621-014-0032-1

 

No Apparent Substitution Effect in Colorado Opioid Deaths

WTR-RI Research and Analysis Team Note: Proponents of Marijuana Legalization of Marijuana Use suggest it will lead to a substitution effect and that persons struggling with Heroin and Prescription Opioids will switch to MJ.  According to a Colorado Public Radio (CPR) report this has not been the case.  Below are links to the CPR report’s transcript and to a SAMSHA chart showing trends in Colorado’s college age MJ use.

Chart: Colorado among states with growing heroin, prescription drug abuse problem

http://www.cpr.org/news/story/chart-colorado-among-states-growing-heroin-prescription-drug-abuse-problem

Past Month College Age 2014 Samsa-PDF

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