Past 15-year trends in adolescent marijuana use: Differences by race/ethnicity and sex
Past 15-year trends in adolescent marijuana use: Differences by race/ethnicity and sex
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DOI：
10.1016/j.drugalcdep.2015.08.025
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发表时间：
2015-10-01
影响因子：
4.2
通讯作者：
Furr-Holden, C. Debra M.
中科院分区：
文献类型：
--
作者：
Johnson, Renee M.;Fairman, Brian;Furr-Holden, C. Debra M.
背景：考虑到最近大麻政策的变化，青少年大麻使用增加的可能性是一个重要的问题。这项研究的目的是估计1999年至2013年美国高中生全国样本中大麻使用的趋势。我们研究的变化随着时间的推移，种族/民族和sex.Methods：数据来自全国青年危险行为调查（YRBS），其中涉及两年一次，以学校为基础的调查，产生全国代表性的数据约9日至12日年级的学生在美国。学生自我报告的性别、种族/民族和大麻使用情况（即，终身使用，过去30天的使用，13岁之前的任何使用）。我们生成了该时期大麻使用流行率的国家估计值，并测试了线性和二次趋势（n = 115，379）。结果：终身大麻使用的流行率从1999年到2009年略有下降（44%到37%），自2009年以来略有增加（41%）。其他大麻使用变量（例如，过去30天的使用）随时间的推移遵循类似的模式。从1999年到2013年，所有群体和男女过去30天使用的流行率为22.5%，亚洲人最低，美洲印第安人/阿拉斯加原住民最高。虽然男孩在历史上有较高的流行率大麻的使用，结果表明，男性和女性的差异在大麻的使用随着时间的推移而下降。结论：尽管在过去的15年中，国家大麻政策有很大的变化，大麻的使用在高中学生中已大大下降。需要继续监测，以评估政策变化对青少年大麻使用的影响。(C)2015爱思唯尔爱尔兰有限公司版权所有。
Background: The potential for increases in adolescent marijuana use is an important concern given recent changes in maiijuana policy. The purpose of this study was to estimate trends in marijuana use from 1999 to 2013 among a national sample of US high school students. We examine changes over time by race/ethnicity and sex.Methods: Data are from the National Youth Risk Behavior Survey (YRBS), which involves biennial, school-based surveys that generate nationally representative data about 9th-12th grade students in the United States. Students self-reported sex, race/ethnicity, and marijuana use (i.e., lifetime use, past 30-day use, any use before age 13). We generated national estimates of the prevalence of marijuana use for the time period, and also tested for linear and quadratic trends (n = 115,379).Results: The prevalence of lifetime marijuana use decreased modestly from 1999 to 2009 (44% to 37%), and has increased slightly since 2009 (41%). Other marijuana use variables (e.g., past 30-day use) followed a similar pattern over time. The prevalence of past 30-day use from 1999 to 2013 for all groups and both sexes was 22.5%, and it was lowest among Asians and highest among American Indian/Alaska Natives. Although boys have historically had a higher prevalence of marijuana use, results indicate that male-female differences in marijuana use decreased over time.Conclusion: Despite considerable changes in state marijuana policies over the past 15 years, marijuana use among high school students has largely declined. Continued surveillance is needed to assess the impact of policy changes on adolescent marijuana use. (C) 2015 Elsevier Ireland Ltd. All rights reserved.