Predictors and Consequences of Simultaneous Alcohol and Cannabis Use in Adolescents

Background/Aims: The simultaneous use of alcohol and cannabis is common among adolescents, but has been little studied. In this study, we examine predictors and consequences of this behavior in a population-based sample of high school students. Method: Self-reports were obtained from students in Quebec (Canada) followed throughout high school (N=6589). Logistic regressions were used to test the association between individual, family, and peerrelated predictors in grades 7–8 and simultaneous alcohol and cannabis use in grade 10, as well as between simultaneous alcohol and cannabis use in grade 10 and experiencing 3 or more substance-related problems of various types (legal, physical, etc.) in grade 11. Results: Most predictors in grades 7–8 were associated with simultaneous alcohol and cannabis use in grade 10. Only variables reflecting early-onset substance use involvement — alcohol intoxication, cannabis use, and drug use by close friend(s) — remained predictive in a multivariate model. Simultaneous alcohol and cannabis use was associated with increased substance-related problems in grade 11, above and beyond baseline problems and the concurrent use of the two substances in separate episodes in grade 10. Conclusions: Simultaneous alcohol and cannabis use 1) is anticipated by multiple psychosocial risk factors which come together with individual and peer substance use in early high school and 2) is independently predictive of subsequent substance-related problems. Providing adolescents with adequate information regarding the potential harm of simultaneous use may be a useful prevention strategy.

Registration, February 1948

signs indicating which classes open, etc. near Waterman gym

General information on applying for registration of pesticides in the United States.

"June, 1989."

Drug registration and listing instruction booklet.

Mode of access: Internet.

Delayed birth registration practices : vital registration areas of the United States.

Item 508.

Handbook on divorce registration.

"April 1988."

1301 review problems from EIT and Engineering registration examinations, with answers and typical solutions.

Mode of access: Internet.

County electors act, 1888: with notes on the changes made in the law of parliamentary and municipal registration for the purpose of forming a register of persons qualified to vote at elections of county and district councillors.

Mode of access: Internet.

Vehicle factors: motor vehicle registration and titling study. Volume I.

National Highway Safety Bureau, Washington, D.C.

Registration appeals : determined by the Court of Common Pleas, under the 6 Vict. c. 18 : argued during Michaelmas term, 1843.

Includes index.