The Center for Injury Research and Policy, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA.
Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
Subst Use Misuse. 2024;59(2):235-242. doi: 10.1080/10826084.2023.2267123. Epub 2023 Dec 28.
We investigated associations between the retail distribution of recreational marijuana in Colorado and (i) past 30-day marijuana use and (ii) driving after marijuana use (DAMU) among a representative sample of public high school students using four waves of data from a state surveillance system.
Past 30-day marijuana use was assessed among all sampled students ( = 85,336). DAMU was assessed among students 15 years or older who indicated driving ( = 47,518). Modified Poisson regression with robust variance estimates was used to estimate prevalence ratios (PR) comparing the pre-distribution (2013) and post-distribution (2015, 2017, 2019) periods for marijuana-related behaviors. Frequency of behavioral engagement was assessed using a multinomial approach.
An estimated 20.3% of students engaged in past 30-day marijuana use and 10.5% of student drivers engaged in DAMU. Retail distribution of recreational marijuana was not significantly associated with the prevalence of any marijuana use or DAMU. However, it was associated with 1.16 (95% CI: 1.04-1.29) times the prevalence of using marijuana one or two times in the last 30 days, 1.27 (1.03, 1.55) times the prevalence of DAMU one time, and 0.82 (0.69, 0.98) times the prevalence of DAMU six or more times. No significant associations were observed for the remaining frequency categories.
Approximately 1 in 10 students who drive reported DAMU. Varying prevalence in the frequency of past 30-day marijuana use and DAMU was observed following the retail distribution of recreational marijuana in Colorado. Care should be taken to properly educate adolescent drivers regarding the dangers of DAMU.
我们调查了科罗拉多州休闲大麻零售分布与（i）过去 30 天大麻使用和（ii）大麻使用后驾驶（DAMU）之间的关联，使用来自州监测系统的四个波次的数据，对代表性的公立高中生样本进行了研究。
对所有抽样学生（ = 85,336）进行过去 30 天大麻使用情况评估。对 15 岁或以上表明驾驶的学生（ = 47,518）进行 DAMU 评估。使用具有稳健方差估计的修正泊松回归估计了大麻相关行为在分布前（2013 年）和分布后（2015 年、2017 年、2019 年）时期的患病率比（PR）。使用多项式方法评估行为参与的频率。
估计有 20.3%的学生过去 30 天内使用过大麻，10.5%的学生驾驶员曾进行 DAMU。休闲大麻的零售分布与任何大麻使用或 DAMU 的流行率均无显著关联。然而，它与过去 30 天内使用大麻 1 或 2 次的流行率相关（1.16，95%CI：1.04-1.29），与 DAMU 1 次的流行率相关（1.27，1.03-1.55），与 DAMU 6 次或以上的流行率相关（0.82，0.69-0.98）。对于其余频率类别，未观察到显著关联。
大约每 10 名驾车学生中就有 1 名报告有 DAMU。在科罗拉多州休闲大麻零售分布后，观察到过去 30 天内大麻使用和 DAMU 的频率呈现不同的流行率。应谨慎对待，对青少年驾驶员进行适当教育，使他们了解 DAMU 的危害。
