Daily marijuana use has been on the rise over the past decade. Now, a new study by researchers at Columbia University’s Mailman School of Public Health and the Graduate School of Public Health and Health Policy, City University of New York, found that cigarette smokers are 10 times more likely to use marijuana on a daily basis. Marijuana use occurred nearly exclusively among current cigarette smokers–daily or non-daily smokers–compared with former smokers and those who have never smoked. However, even among non-smokers, daily marijuana use is increasing, particularly among youth and female cigarette smokers. The findings are published online in the American Journal of Public Health.
“While we found that daily cannabis use and cigarette smoking were strongly linked among all subgroups, the most finding striking disparity in daily cannabis use was among youths aged 12 to 17 years,” said Renee Goodwin, PhD, Department of Epidemiology, Mailman School of Public Health,