@article{ref1,
title="E-cigarette use, dual use of e-cigarettes and tobacco cigarettes, and frequency of cannabis use among high school students",
journal="Addictive behaviors",
year="2017",
author="Azagba, Sunday",
volume="79",
number="",
pages="166-170",
abstract="BACKGROUND: The proliferation of electronic vaping products raises many concerns, including whether these products will lead to risky behaviors among adolescents. Evidence suggests that e-cigarettes may be used to vaporize cannabis (marijuana). The current study examined associations between e-cigarette use, dual use of e-cigarettes and tobacco cigarettes, and frequency of cannabis use. <br><br>METHODS: Data on high school students (grades 9-12) were from the 2014-2015 Canadian Student Tobacco, Alcohol and Drugs Survey (n=23,429 respondents). Multinomial logistic regression analyses were used to examine frequency of cannabis use among those who reported using only e-cigarettes, only tobacco cigarettes, both products, and nonusers. <br><br>RESULTS: Approximately 15% of respondents reported using cannabis at least once in the past month. Likelihood of using cannabis was significantly higher for e-cigarette only and cigarette- only users. Users of both products had increased odds for a higher frequency of cannabis use. These results indicated a sequential risk gradient in the use of cannabis for dual use, cigarette only, e-cigarette only, and non-use groups, respectively. <br><br>CONCLUSIONS: Youth who reported use of e-cigarettes, tobacco cigarettes, and both products showed a heightened risk of using cannabis more frequently.<br><br>Copyright © 2017 Elsevier Ltd. All rights reserved.<p /> <p>Language: en</p>",
language="en",
issn="0306-4603",
doi="10.1016/j.addbeh.2017.12.028",
url="http://dx.doi.org/10.1016/j.addbeh.2017.12.028"
}