A latent class analysis of poly-marijuana use among young adults

Melissa J. Krauss, Biva Rajbhandari, Shaina J. Sowles, Edward L. Spitznagel, Patricia Cavazos-Rehg

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Introduction With more states legalizing marijuana use, the marijuana industry has grown, introducing a variety of marijuana products. Our study explores the use of multiple marijuana products (poly-marijuana use) and the characteristics associated with this behavior. Methods Past-month marijuana users aged 18–34 years were surveyed online via an existing online panel (n = 2444). Participants answered questions about past-month use of three types of marijuana (plant-based, concentrates, edibles), marijuana use patterns, and driving after use. Latent class analysis was used to identify subgroups of marijuana users. Results Four classes of marijuana users were identified: Light plant users, who used only plant-based products infrequently and were unlikely to drive after use (32%); Heavy plant users, who used mainly plant-based products frequently, multiple times per day, and were likely to drive after use (37%); Plant and concentrates users, who used plant-based products heavily and concentrates at least infrequently, used multiple times per day, and were likely to drive after use (20%); Light plant and edibles users, who used both products infrequently and were unlikely to drive after use (10%). Those in legal marijuana states were more likely to belong to the poly-marijuana groups. Discussion Our findings reflect the increase in popularity of new marijuana products in legal states and suggest that heavy user groups, including concentrates users, are associated with driving after use. As various forms of marijuana use increases, monitoring and surveillance of the use of multiple types of marijuana will be important for determining potential varying impacts on physiological and social consequences.

Original languageEnglish
Pages (from-to)159-165
Number of pages7
JournalAddictive Behaviors
Volume75
DOIs
StatePublished - Dec 2017

Keywords

  • Drugged driving
  • Marijuana
  • Marijuana legalization
  • Substance use

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