Steve Hicks School of Social Work, The University of Texas at Austin, Austin, TX, USA.
Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA.
Addiction. 2023 Feb;118(2):372-377. doi: 10.1111/add.16027. Epub 2022 Sep 14.
To measure longitudinal trajectories of marijuana use in four tobacco/nicotine products (hand-rolled cigarettes/spliffs, cigars/blunts, hookah, and e-cigarettes) among young adult Texas college students from 2015 to 2019.
This study used six consecutive waves of data from the marketing and promotions across colleges in Texas project (Project M-PACT), a longitudinal study of the tobacco behaviors of young adult college students. The first four waves were collected every 6 months (fall 2015-spring 2017), and the final two waves were conducted yearly (spring 2018 and 2019). Growth curve models measured trajectories of marijuana use in tobacco products across the 3.5-year period.
A total of 4857 young adults from 24 colleges in the largest metropolitan areas of Texas, United States (Austin, Dallas, Houston, and San Antonio): mean age = 21.0, SD = 2.3; 64.2% assigned female; 36.1% non-Hispanic white, 31.0% Hispanic, and 33.0% other or combination race/ethnicity.
Participants completed online surveys assessing their past 6-month use of marijuana in four tobacco products of interest (spliffs, blunts, hookah, and e-cigarettes) and socio-demographic variables (sex, race/ethnicity, age, 2-year/4-year college attendance, and sexual and gender minority identity).
Observed vaping marijuana in e-cigarettes approximately doubled between the spring of 2015 and the spring of 2019, from 11.8% to 23.9% following a quadratic time trend (linear OR = 0.84, 95% CI = 0.73-0.97, quadratic OR = 1.18, CI = 1.13-1.22). This same time period saw a quadratic decline in using marijuana in hookah (P < 0.001) and no changes in using hand-rolled cigarettes/spliffs or cigars/blunts for marijuana delivery.
The popularity of nicotine e-cigarettes appears to be expanding the avenues for marijuana delivery among young adults in Texas, United States.
测量 2015 年至 2019 年期间，德克萨斯州年轻成年大学生群体在四种烟草/尼古丁产品（手卷香烟/大麻卷、雪茄/ blunt、水烟和电子烟）中吸食大麻的纵向轨迹。
本研究使用了来自德克萨斯州市场营销和推广项目（Project M-PACT）的六组连续数据，这是一项针对年轻成年大学生烟草行为的纵向研究。前四组数据每 6 个月收集一次（2015 年秋季至 2017 年春季），最后两组数据每年收集一次（2018 年春季和 2019 年春季）。增长曲线模型测量了 3.5 年内大麻在烟草产品中的使用轨迹。
来自美国德克萨斯州最大都市区（奥斯汀、达拉斯、休斯顿和圣安东尼奥）的 24 所大学的 4857 名年轻人：平均年龄 21.0，标准差 2.3；64.2%为女性；36.1%为非西班牙裔白人，31.0%为西班牙裔，33.0%为其他或混合种族/族裔。
参与者完成了在线调查，评估了他们过去 6 个月内吸食大麻在四种感兴趣的烟草产品（大麻卷、 blunt、水烟和电子烟）中的使用情况，以及社会人口统计学变量（性别、种族/族裔、年龄、2 年制/4 年制学院入学情况以及性和性别少数群体认同）。
观察到，在 2015 年春季至 2019 年春季期间，吸食电子烟大麻的比例大约翻了一番，从 11.8%增加到 23.9%，呈二次时间趋势（线性 OR=0.84，95%CI=0.73-0.97，二次 OR=1.18，CI=1.13-1.22）。在同一时期，水烟吸食大麻的比例呈二次下降（P<0.001），而手卷香烟/大麻卷或雪茄/blunt 用于吸食大麻的比例没有变化。
在美国德克萨斯州，尼古丁电子烟的普及似乎正在为年轻人提供更多吸食大麻的途径。
