E-cigarette use is prospectively associated with initiation of cannabis among college students
E-cigarette use is prospectively associated with initiation of cannabis among college students
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DOI：
10.1016/j.addbeh.2020.106312
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发表时间：
2020-07-01
影响因子：
4.4
通讯作者：
Dick, Danielle M.
中科院分区：
文献类型：
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作者：
Ksinan, Albert J.;Spindle, Tory R.;Dick, Danielle M.
电子烟在年轻人中的受欢迎程度急剧上升。近年来，随着大麻合法化的扩大，年轻人对大麻的使用也在稳步增加。烟草制品的使用会增加青少年后来开始吸食大麻的机会。然而，大多数烟草和大麻使用模式的纵向调查都集中在卷烟上，包括青少年而不是年轻人，并且只采用了两个时间点。目前的研究调查了电子烟和大麻使用之间的潜在联系，在四个时间点（大一到大四；N = 4670）评估了一个大的、多样化的大学样本。电子烟的使用和大麻的使用在四波交叉滞后模型中建模。结果显示两种物质之间存在显著的双向关联，即使在控制了随时间变化的抑郁症状水平、酒精使用和多种物质使用、感觉寻求、人口统计学变量、并发关联和以前的使用水平之后也是如此。此外，当我们运行相同的模型时，从使用电子烟到后来使用大麻的预测路径的重要性保持不变，但将样本限制为只使用电子烟的用户（即从不吸烟的人），而在该子样本中，只有一条从使用大麻到使用电子烟的前瞻性路径是显著的。目前的研究结果表明，电子烟的使用和大麻的使用可能是双向的，更有力地支持了电子烟的使用与后来大麻的使用之间的联系，而不仅仅是香烟的使用。随着电子烟进一步占据烟草产品市场份额以及大麻合法化的不断扩大，这些数据对于为电子烟和大麻的监管决策提供信息至关重要，特别是涉及青少年和年轻人的可及性。
E-cigarettes have dramatically increased in popularity among youth. Coincident with expanded legalization, young adults' use of cannabis (marijuana) has also steadily increased in recent years. Use of tobacco products can increase the chances of later cannabis initiation among youth. However, most longitudinal investigations of tobacco and cannabis use patterns have focused on tobacco cigarettes, included adolescents as opposed to young adults, and have only employed two timepoints. The current study examined prospective associations between e-cigarette and cannabis use in a large, diverse college sample assessed over four timepoints (freshman - senior year; N = 4,670). E-cigarette use and cannabis use were modelled in a four-wave cross-lagged model. The results showed significant bidirectional associations between both substances, even after controlling for time-varying levels of depressive symptoms, alcohol use, and polysubstance use, sensation seeking, demographic variables, concurrent associations and previous levels of use. Moreover, the significance of the predictive path from e-cigarette use to later cannabis use remained unchanged when we ran the same model, but restricted the sample to e-cigarette-only users (i.e., never cigarette smokers), whereas only one prospective path from cannabis to e-cigarette use was significant in this subsample. The current findings suggest that the association of e-cigarette use and cannabis use is likely bidirectional, with stronger support for the link from e-cigarette use to later cannabis use, above and beyond cigarette use. As e-cigarettes gain further hold of the tobacco product market share and cannabis legalization continues to expand, data such as these will be critical for informing regulatory decisions for e-cigarettes and cannabis, particularly involving their accessibility to youth and young adults.