TY - JOUR
T1 - Heterogeneity of state medical marijuana laws and adolescent recent use of alcohol and marijuana
T2 - Analysis of 45 states, 1991–2011
AU - Johnson, Julie K.
AU - Johnson, Renee M.
AU - Hodgkin, Dominic
AU - Jones, Abenaa A.
AU - Matteucci, Ann Marie
AU - Harris, Sion K.
N1 - Publisher Copyright:
© 2018, © 2018 Taylor & Francis Group, LLC.
PY - 2018/4/3
Y1 - 2018/4/3
N2 - Objective: To assess associations between enactment of state medical marijuana laws (MMLs), MML restrictiveness, and past-30-day youth alcohol use overall, and in relation to marijuana use. Method: This quasi-experimental difference-in-difference designed study used state-level Youth Risk Behavior Survey data of 9th–12th grade students in 45 states from 1991–2011 (N D 715,014). We conducted bivariate (unadjusted) and multivariable (adjusted for state, year, individual characteristics) logistic regression analyses to examine the effect of MML enactment (yes/no) and less restrictive vs. more restrictive MMLs on five varying measures of past 30-day alcohol use (i.e., any use or binge) and alcohol and marijuana use behaviors. Results: In the final adjusted analyses, MML enactment was associated with lower odds of adolescent past 30-day (1) alcohol use (OR D 0.92, [0.87, 0.97], p <.01) and (2) use of both alcohol and marijuana (OR D 0.93, [0.87, 0.99], p <.05). States with less restrictive MMLs had lower odds of past 30-day (1) alcohol use (OR D 0.94, [0.92, 0.97], p <.001), (2) binge drinking (OR D 0.96, [0.93, 0.97], p <.05), (3) alcohol use without any marijuana use (OR D 0.96, [0.93, 0.99], p <.01), and (4) use of both alcohol and marijuana (OR D 0.96, [0.92, 0.99], p <.05). Conclusions: This study found that enactment of any MML, and of less restrictive MMLs, was associated with lower odds of past 30-day adolescent alcohol use among adolescents. With continued change in state marijuana laws, it is important to monitor the effect of their enactment and implementation, as well as their specific provisions (e.g. dispensaries, home cultivation), which may differentially affect adolescent behaviors.
AB - Objective: To assess associations between enactment of state medical marijuana laws (MMLs), MML restrictiveness, and past-30-day youth alcohol use overall, and in relation to marijuana use. Method: This quasi-experimental difference-in-difference designed study used state-level Youth Risk Behavior Survey data of 9th–12th grade students in 45 states from 1991–2011 (N D 715,014). We conducted bivariate (unadjusted) and multivariable (adjusted for state, year, individual characteristics) logistic regression analyses to examine the effect of MML enactment (yes/no) and less restrictive vs. more restrictive MMLs on five varying measures of past 30-day alcohol use (i.e., any use or binge) and alcohol and marijuana use behaviors. Results: In the final adjusted analyses, MML enactment was associated with lower odds of adolescent past 30-day (1) alcohol use (OR D 0.92, [0.87, 0.97], p <.01) and (2) use of both alcohol and marijuana (OR D 0.93, [0.87, 0.99], p <.05). States with less restrictive MMLs had lower odds of past 30-day (1) alcohol use (OR D 0.94, [0.92, 0.97], p <.001), (2) binge drinking (OR D 0.96, [0.93, 0.97], p <.05), (3) alcohol use without any marijuana use (OR D 0.96, [0.93, 0.99], p <.01), and (4) use of both alcohol and marijuana (OR D 0.96, [0.92, 0.99], p <.05). Conclusions: This study found that enactment of any MML, and of less restrictive MMLs, was associated with lower odds of past 30-day adolescent alcohol use among adolescents. With continued change in state marijuana laws, it is important to monitor the effect of their enactment and implementation, as well as their specific provisions (e.g. dispensaries, home cultivation), which may differentially affect adolescent behaviors.
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U2 - 10.1080/08897077.2017.1389801
DO - 10.1080/08897077.2017.1389801
M3 - Article
C2 - 28991522
AN - SCOPUS:85033698830
SN - 0889-7077
VL - 39
SP - 247
EP - 254
JO - Substance Abuse
JF - Substance Abuse
IS - 2
ER -