Planting the seed for marijuana use: Changes in exposure to medical marijuana advertising and subsequent adolescent marijuana use, cognitions, and consequences over seven years
Planting the seed for marijuana use: Changes in exposure to medical marijuana advertising and subsequent adolescent marijuana use, cognitions, and consequences over seven years
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DOI：
10.1016/j.drugalcdep.2018.03.031
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发表时间：
2018-07-01
影响因子：
4.2
通讯作者：
Shih, Regina A.
中科院分区：
文献类型：
--
作者：
D'Amico, Elizabeth J.;Rodriguez, Anthony;Shih, Regina A.
背景：青春期吸食大麻与神经认知缺陷和多个领域的功能较差有关。可能会有更多的州在即将到来的选举中通过医用和娱乐大麻合法化法律；因此，我们必须开始更仔细地研究医用大麻 (MM) 广告对青少年吸食大麻的纵向影响，以便我们能够更好地了解该广告可能对他们随后吸食大麻和相关结果产生的影响。 方法：我们跟踪了 2010 年至 2017 年从南加州学区招募的两组 7 年级和 8 年级学生（平均年龄 13 岁）（平均年龄 19 岁），以检查广告对青少年吸食大麻的影响。 MM 广告介绍了七年来青少年吸食大麻、认知和后果的情况。潜在增长模型检查了过去三个月中自我报告的医用大麻广告暴露轨迹以及使用、认知和后果的轨迹。结果：MM 广告的平均暴露量较高与平均使用量、使用意图、积极预期和消极后果较高相关。同样，MM 广告曝光率的较高变化率与七年内使用、意图、预期和后果的较高变化率相关。结论：结果表明，MM 广告的暴露不仅可能在塑造人们对大麻的态度方面发挥重要作用，而且还可能导致整个青春期大麻使用的增加和相关的负面后果。这凸显了考虑大麻广告法规的重要性，类似于美国针对烟草和酒精促销的法规。
Background: Marijuana use during adolescence is associated with neurocognitive deficits and poorer functioning across several domains. It is likely that more states will pass both medical and recreational marijuana legalization laws in the coming elections; therefore, we must begin to look more closely at the longitudinal effects of medical marijuana (MM) advertising on marijuana use among adolescents so that we can better understand effects that this advertising may have on their subsequent marijuana use and related outcomes.Methods: We followed two cohorts of 7th and 8th graders (mean age 13) recruited from school districts in Southern California from 2010 until 2017 (mean age 19) to examine effects of MM advertising on adolescents' marijuana use, cognitions, and consequences over seven years. Latent growth models examined trajectories of self-reported exposure to medical marijuana ads in the past three months and trajectories of use, cognitions, and consequences.Results: Higher average exposure to MM advertising was associated with higher average use, intentions to use, positive expectancies, and negative consequences. Similarly, higher rates of change in MM advertising exposure were associated with higher rates of change in use, intentions, expectancies, and consequences over seven years.Conclusions: Results suggest that exposure to MM advertising may not only play a significant role in shaping attitudes about marijuana, but may also contribute to increased marijuana use and related negative consequences throughout adolescence. This highlights the importance of considering regulations for marijuana advertising, similar to regulations in place for the promotion of tobacco and alcohol in the U.S.