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Coughlin LN, Bonar EE, Bohnert AS, Blow FC, Bauermeister JA, Cross Y, Cunningham R, Young SD, Walton MA. Patterns of same-day alcohol and cannabis use in adolescents and young adults with risky alcohol use. ADDICTION RESEARCH & THEORY 2021; 30:89-95. [PMID: 36093415 PMCID: PMC9455920 DOI: 10.1080/16066359.2021.1936511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 04/16/2021] [Accepted: 05/26/2021] [Indexed: 06/14/2023]
Abstract
Same-day alcohol and cannabis use is relatively common in adolescents and young adults, constituting a higher-risk behavior relative to single-substance use. However, the association between quantity of alcohol and cannabis use on co-use days is understudied. We examined the association between the quantity of alcohol and same-day cannabis use with a multilevel regression analysis in a sample of youth (16-24 years old) with risky alcohol use. Participants reported one or more days of alcohol and cannabis over the past month (N = 468). Quantity of cannabis use was highest on heavy drinking days [M = 0.91 grams, SD = 0.68] followed by moderate drinking days (M = 0.78 grams, SD = 0.63), and lowest on days without alcohol use (M = 0.74 grams, SD = 0.64, p < 0.001). In multilevel modeling analyses, adjusted for clustering within individuals, greater quantity of drinking on a given day was associated with greater cannabis use (estimate = 0.03, p < 0.001). When using alcohol and cannabis on the same day, greater alcohol use was associated with greater cannabis use. Preventing days of heavy use of multiple substances, particularly among at-risk drinkers, may complement interventions addressing co-use generally to prevent substance-related consequences.
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Affiliation(s)
- Lara N. Coughlin
- Department of Psychiatry, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
- Addiction Center, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
- Injury Prevention Center, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
| | - Erin E. Bonar
- Department of Psychiatry, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
- Addiction Center, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
- Injury Prevention Center, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
| | - Amy S.B Bohnert
- VA Center for Clinical Management Research, North Campus Research Complex, Ann Arbor, MI, USA
- Department of Anesthesiology, University of Michigan, Ann Arbor, MI, USA
| | - Frederic C. Blow
- Department of Psychiatry, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
- Addiction Center, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
- VA Center for Clinical Management Research, North Campus Research Complex, Ann Arbor, MI, USA
| | - José A. Bauermeister
- Department of Family and Community Health, School of Nursing, University of Pennsylvania, Philadelphia, PA, USA
| | - Yazmyn Cross
- Department of Psychiatry, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
- Addiction Center, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
| | - Rebecca Cunningham
- Injury Prevention Center, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
- Department of Emergency Medicine, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
| | - Sean D. Young
- Department of Informatics, Donald Bren School of Information and Computer Sciences, University of California Irvine, Irvine, CA, USA
- Department of Emergency Medicine, School of Medicine, University of California Irvine, Irvine, CA, USA
| | - Maureen A. Walton
- Department of Psychiatry, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
- Addiction Center, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
- Injury Prevention Center, University of Michigan, North Campus Research Complex, Ann Arbor, MI, USA
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