@article{ref1,
title="Medical marijuana legalization and cigarette and marijuana co-use in adolescents and adults",
journal="Drug and alcohol dependence",
year="2016",
author="Wang, Julie B. and Ramo, Danielle E. and Lisha, Nadra E. and Cataldo, Janine K.",
volume="166",
number="",
pages="32-38",
abstract="BACKGROUND: Medical marijuana legalization is associated with a higher prevalence of marijuana use which may affect cigarette use and nicotine dependence in co-users. In the present study, we examined relationships between statewide legalization of medical marijuana and prevalence of cigarette and marijuana co-use and nicotine dependence in co-using adolescents and adults. <br><br>METHODS: Data were analyzed from the 2013 National Survey on Drug Use and Health. We compared cigarette and marijuana co-use in the past 30days across age categories (12-64 years) by statewide medical marijuana legalization. Logistic regression models were used to estimate the odds of having nicotine dependence among current cigarette smokers who also reported past 30-day marijuana use and &quot;ever but not current&quot; marijuana use (vs. &quot;never&quot; use) adjusting for covariates including statewide legalization of medical marijuana. <br><br>RESULTS: Overall, 5.1% of the sample reported past 30-day cigarette and marijuana co-use and a higher proportion of co-users resided in states where medical marijuana was legal compared to illegal (5.8% vs. 4.8%; p=0.0011). Co-use was associated with greater odds of having nicotine dependence compared to cigarette-only use across age categories. Odds were highest and up to 3-times higher in adolescents aged 12-17 years (OR=3.54; 95%CI: 1.81-6.92) and adults aged 50-64 years (OR=3.08; CI: 1.45-6.55). <br><br>CONCLUSION: Marijuana policy could inadvertently affect cigarette and marijuana co-use and pose challenges to tobacco cessation.<br><br>Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.<p /> <p>Language: en</p>",
language="en",
issn="0376-8716",
doi="10.1016/j.drugalcdep.2016.06.016",
url="http://dx.doi.org/10.1016/j.drugalcdep.2016.06.016"
}