Marijuana Use, Disorders Double in US Adults

MEDSCAPE (10/23) – The prevalence of marijuana use among US adults more than doubled over a 12-year period, from 2001 to 2013, new research suggests. Prevalence rates rose from 4.1% in 2001 to 9.5% in 2013, according to similarly designed studies conducted 12 years apart. Over the same period, the prevalence of marijuana use disorders (abuse or dependence) nearly doubled, from 1.5% to 2.9%. Read more

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