TY - JOUR
T1 - A latent class analysis of poly-marijuana use among young adults
AU - Krauss, Melissa J.
AU - Rajbhandari, Biva
AU - Sowles, Shaina J.
AU - Spitznagel, Edward L.
AU - Cavazos-Rehg, Patricia
N1 - Funding Information:
This work was supported by grants awarded to Dr. Patricia A. Cavazos-Rehg from the National Institutes of Health [grant numbers: R01 DA039455, R01 DA032843].
Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/12
Y1 - 2017/12
N2 - 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.
AB - 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.
KW - Drugged driving
KW - Marijuana
KW - Marijuana legalization
KW - Substance use
UR - http://www.scopus.com/inward/record.url?scp=85026350730&partnerID=8YFLogxK
U2 - 10.1016/j.addbeh.2017.07.021
DO - 10.1016/j.addbeh.2017.07.021
M3 - Article
C2 - 28756354
AN - SCOPUS:85026350730
SN - 0306-4603
VL - 75
SP - 159
EP - 165
JO - Addictive Behaviors
JF - Addictive Behaviors
ER -