Department of Kinesiology and Health Education, The University of Texas at Austin, 2109 San Jacinto Blvd, Austin, TX 78712, USA.
Department of Kinesiology and Health Education, The University of Texas at Austin, 2109 San Jacinto Blvd, Austin, TX 78712, USA.
Addict Behav. 2024 Jan;148:107871. doi: 10.1016/j.addbeh.2023.107871. Epub 2023 Sep 25.
Co-use, including concurrent use or co-administration, of cannabis and tobacco is most prevalent in young adulthood and associated with worse health outcomes than use of either substance alone. This study examined latent classes of tobacco and cannabis concurrent use and co-administration, and transitions between classes from 2016 to 2019, among a sample of young adult college students in Texas.
Participants included 4,448 young adults (64.2% female, 64.7% non-white, mean age = 20.5) in a longitudinal cohort study. Measures included past 30-day use of cigarettes. hookah, cigars, ENDS, cannabis, and cannabis and tobacco co-administration. Latent Markov models were used to estimate latent class membership and transitions between classes from 2016 to 2017 and 2017 to 2019.
Four latent classes emerged: non-use (58% of students) characterized by low/no probability of any use; general use (19%) characterized by some level of use of all behaviors; blunt and cannabis use class (13%) characterized by high probabilities of cannabis use and co-administration with blunts; and concurrent and co-administration use (10%) with high probabilities of cigarette, cannabis, blunt, and spliff use. Most students remained in the same latent class from 2016 to 2019.
While most students reported low/no tobacco and cannabis co-use, those who used cannabis and/or tobacco remained in their use classes over the course of the study (2016 to 2019). Public health advocates on college campuses should consider prevention and cessation programs that incorporate the constellation of behaviors related to cannabis and tobacco co-use and educate students about the health consequences of co-use.
大麻和烟草的共同使用，包括同时使用或共同给药，在青年时期最为普遍，与单独使用任何一种物质相比，其健康后果更差。本研究调查了德克萨斯州青年大学生样本中烟草和大麻同时使用和共同给药的潜在类别，以及 2016 年至 2019 年期间各类别之间的转变。
参与者包括一项纵向队列研究中的 4448 名青年成年人（64.2%为女性，64.7%为非白人，平均年龄为 20.5 岁）。测量包括过去 30 天内使用香烟、水烟、雪茄、电子烟、大麻和大麻与烟草共同给药的情况。使用潜在马尔可夫模型来估计从 2016 年到 2017 年以及从 2017 年到 2019 年的潜在类别成员和类别之间的转变。
出现了四个潜在类别：非使用者（58%的学生）表现为使用任何行为的概率低/无；一般使用者（19%）表现为使用所有行为的某种程度；blunt 和大麻使用者类别（13%）表现为大麻使用和与 blunt 共同给药的高概率；以及同时使用和共同给药类别（10%）表现为香烟、大麻、blunt 和 spliff 使用的高概率。大多数学生在 2016 年至 2019 年期间仍留在同一潜在类别中。
虽然大多数学生报告大麻和烟草共同使用的比例较低/无，但在研究期间（2016 年至 2019 年），那些使用大麻和/或烟草的学生仍留在他们的使用类别中。大学校园的公共卫生倡导者应该考虑将预防和戒烟计划纳入与大麻和烟草共同使用相关的行为组合，并教育学生关于共同使用的健康后果。
