Estoup Ashley C, Moise-Campbell Claudine, Varma Malini, Stewart David G
a Clinical Psychology, Seattle Pacific University , Seattle , Washington , USA.
Subst Use Misuse. 2016 Dec 5;51(14):1881-7. doi: 10.1080/10826084.2016.1200623. Epub 2016 Sep 9.
Currently, only four states have legalized recreational marijuana use for adults over 21 years of age. Therefore, little is known about the influence that legalization will have on adolescent marijuana use.
This study examines how marijuana legalization has impacted the frequency and consequences of adolescent use in a sample of participants in a school-based, substance use intervention. We hypothesized that adolescents enrolled in the intervention in years after marijuana legalization would present with more problematic use compared to those enrolled prior, and that changes in the perceived risk of marijuana would be a mechanism of problematic use.
Participants were 262 students enrolled in a school-based substance use intervention in 2010 to 2015. The Customary Drinking and Drug Use Record, Alcohol and Drug Use Consequences Questionnaire, and a decisional balance matrix were used to assess marijuana frequency, negative consequences, and perceived risk of use. A mediation model was used to test the degree to which marijuana legalization may lead to increased frequency and consequences of use through perceived risk.
Findings indicated a significantly positive correlation between marijuana-related consequences and perceived risk post legalization. Despite relatively equal use between both groups, adolescents in the legalization group experienced higher levels of perceived risk and increased negative consequences.
CONCLUSIONS/IMPORTANCE: Due to the rising legalization status of marijuana in the United States, it is imperative that psychoeducation is provided to adults and adolescents about the consequences of underage marijuana use.
目前，只有四个州将21岁以上成年人使用娱乐性大麻合法化。因此，对于合法化对青少年大麻使用的影响知之甚少。
本研究考察了大麻合法化如何影响了参与一项基于学校的物质使用干预的样本中青少年使用大麻的频率和后果。我们假设，与合法化之前参与干预的青少年相比，在大麻合法化之后参与干预的青少年会出现更多问题性使用情况，并且大麻感知风险的变化是问题性使用的一种机制。
参与者为262名在2010年至2015年期间参与一项基于学校的物质使用干预的学生。使用习惯性饮酒和药物使用记录、酒精和药物使用后果问卷以及一个决策平衡矩阵来评估大麻使用频率、负面后果以及使用的感知风险。采用中介模型来检验大麻合法化可能通过感知风险导致使用频率和后果增加的程度。
研究结果表明，合法化后大麻相关后果与感知风险之间存在显著正相关。尽管两组之间的使用情况相对相当，但合法化组的青少年经历了更高水平的感知风险和更多的负面后果。
结论/重要性：由于美国大麻合法化的现状不断上升，必须向成年人和青少年提供关于未成年人大麻使用后果的心理教育。
