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Study: No Increase In Problematic Cannabis Use

Thursday, 25 February 2016

Study: No Increase In Problematic Cannabis Use

St. Louis, MO: The prevalence of problematic cannabis is decreasing, according to data published in the journal JAMA Psychiatry.

Investigators at the Washington School of Medicine in St. Louis assessed trends in marijuana use and in the prevalence of marijuana use disorders during the years 2002 to 2013. Researchers determined that the self-reported use of cannabis by adults increased an estimated 19 percent, but that reports of cannabis-related problems actually declined during this period.

"We're certainly seeing some increases in marijuana use," the lead researcher of the study said. "But our survey didn't notice any increase in marijuana-related problems. Certainly, some people are having problems so we should remain vigilant, but the sky is not falling."

Separate evaluations of self-reported marijuana use by young people have determined that rates of cannabis use by high-school students is significantly lower today than it was 15 years ago.

The study's findings contradict those of a widely publicized 2015 paper which alleged that the use of marijuana had doubled over the past decade and that an estimated one-third of those who consumed cannabis did so problematically.

For more information, please contact Paul Armentano, NORML Deputy Director, at: paul@norml.org. Full text of the study, "Recent trends in the prevalence of marijuana use and associated disorders in the United States," appears in JAMA Psychiatry.