Cigarette smokers are 10 times more likely to be daily marijuana users
Strongest relationship between cigarette smoking and daily cannabis use is among 12 to 17 year olds, who are 50 times more likely to be daily cannabis users than non-smokers
Columbia University's Mailman School of Public Health
November 30, 2017--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.
https://sciencesources.eurekalert.org/pub_releases/2017-11/cums-cs113017.php
