Article by Ricardo Oliveira, Lift The prevalence of cannabis use in the general U.S. population more than doubled in the period between 2002 and 2011. In 2002, 4.5% of the adult population reported having used cannabis, whereas in 2011 this was the case for 9.5% of the population. One-third of all adults aged 18 to … Continue reading Trends in Cannabis Use Among Hospital Patients