Abstract
Background: Cannabis and tobacco use frequently co-occur. Adolescents who consume both substances experience more respiratory distress and psychosocial problems and are less likely to stop compared with those who use either tobacco or cannabis alone. This study examined time trends in tobacco and cannabis use among 15-year-olds in Europe and North America between 2002 and 2010. Methods: Twenty-eight countries were included and merged into six regions based on their welfare systems. Adolescents (n = 142 796) were divided in four 'user groups': 'no-users', 'tobacco and cannabis users', 'tobacco-only users' and 'cannabis-only users'. Prevalence rates are reported by study-wave and region. Logistic regressions with study wave as independent variable were used to study trends in the user groups and regions. Interaction effects between time and gender were considered. Results: Overall, tobacco use, and concurrent tobacco and cannabis use decreased by 3 and 3.7%, respectively, but prevalence rates varied by region. Only in North America, an interaction effect between time and gender was found in tobacco and cannabis users. Conclusions: Although this study demonstrates a decrease in tobacco and cannabis use in most regions, it also shows that the use of both substances is related. Therefore, studying the co-occurring use of tobacco and cannabis is necessary.
Original language | English |
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Pages (from-to) | 73-75 |
Number of pages | 3 |
Journal | European Journal of Public Health |
Volume | 25 |
DOIs | |
Publication status | Published - 1 Apr 2015 |
Bibliographical note
Funding Information:Data collection were funded separately by each of the participating countries and regions. In Slovakia, the HBSC fieldwork and processing of data were supported by the Slovak Research and Development Agency under the contract No. APVV-0032-11.
Publisher Copyright:
© 2015 The Author. Published by Oxford University Press on behalf of the European Public Health Association. All rights reserved.