Marijuana Use Is Associated With Alcohol Use and Consequences Across the First 2 Years of College

College entry is associated with marijuana initiation, and co-use of alcohol and marijuana is associated with problematic outcomes, including alcohol-related consequences. The present study explored if: (a) use of marijuana on a given day would be associated with greater alcohol use within the same...

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Bibliographic Details
Main Authors: Barnett, N.P (Author), Gunn, R.L (Author), Merrill, J.E (Author), Micalizzi, L. (Author), Norris, A.L (Author), Sokolovsky, A. (Author)
Format: Article
Language:English
Published: Educational Publishing Foundation 2018
Subjects:
Online Access:View Fulltext in Publisher
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245 1 0 |a Marijuana Use Is Associated With Alcohol Use and Consequences Across the First 2 Years of College 
260 0 |b Educational Publishing Foundation  |c 2018 
856 |z View Fulltext in Publisher  |u https://doi.org/10.1037/adb0000416 
520 3 |a College entry is associated with marijuana initiation, and co-use of alcohol and marijuana is associated with problematic outcomes, including alcohol-related consequences. The present study explored if: (a) use of marijuana on a given day would be associated with greater alcohol use within the same day; (b) use of marijuana within a given week would be associated with increased alcohol-related consequences in that same week; and (c) the association between marijuana use and alcohol consumption and consequences varies across time or by precollege level of problematic alcohol use. Participants (N 488 college student drinkers, 59% female) completed assessments of marijuana use, alcohol use, and alcohol consequences across 2 years. Analyses revealed: (a) daily marijuana use predicted greater number of daily drinks and estimated breath alcohol concentration; (b) weekly marijuana use predicted more weekly positive and negative alcohol consequences; (c) the effect of daily marijuana use on alcohol use strengthened over time, while the effect of weekly marijuana use on positive alcohol consequences reduced over time; and (d) precollege level of problematic alcohol use moderated the association between daily marijuana and alcohol use and weekly marijuana use and negative consequences. This study provides the first longitudinal evidence of the association between marijuana use and greater alcohol use and consequences in college students. Future research examining event-level measurement of alcohol and marijuana co-use is important for the prevention of alcohol-related consequences. © 2018 American Psychological Association. 
650 0 4 |a adolescent 
650 0 4 |a Adolescent 
650 0 4 |a adult 
650 0 4 |a Alcohol consequences 
650 0 4 |a alcohol consumption 
650 0 4 |a Alcohol Drinking 
650 0 4 |a Alcohol Drinking in College 
650 0 4 |a Alcohol use 
650 0 4 |a Article 
650 0 4 |a breath analysis 
650 0 4 |a cannabis use 
650 0 4 |a college drinking 
650 0 4 |a college student 
650 0 4 |a concentration (parameters) 
650 0 4 |a controlled study 
650 0 4 |a Co-use 
650 0 4 |a cross-sectional study 
650 0 4 |a disease association 
650 0 4 |a drinking behavior 
650 0 4 |a epidemiology 
650 0 4 |a female 
650 0 4 |a Female 
650 0 4 |a human 
650 0 4 |a Humans 
650 0 4 |a Longitudinal Studies 
650 0 4 |a longitudinal study 
650 0 4 |a male 
650 0 4 |a Male 
650 0 4 |a Marijuana use 
650 0 4 |a Marijuana Use 
650 0 4 |a prediction 
650 0 4 |a psychologic assessment 
650 0 4 |a smoking 
650 0 4 |a statistics and numerical data 
650 0 4 |a student 
650 0 4 |a Students 
650 0 4 |a United States 
650 0 4 |a Universities 
650 0 4 |a university 
650 0 4 |a young adult 
700 1 |a Barnett, N.P.  |e author 
700 1 |a Gunn, R.L.  |e author 
700 1 |a Merrill, J.E.  |e author 
700 1 |a Micalizzi, L.  |e author 
700 1 |a Norris, A.L.  |e author 
700 1 |a Sokolovsky, A.  |e author 
773 |t Psychology of Addictive Behaviors