Miech Richard A, Patrick Megan E, O'Malley Patrick M, Johnston Lloyd D
All authors are with the Institute for Social Research, University of Michigan, Ann Arbor.
Am J Public Health. 2017 Jun;107(6):996-1002. doi: 10.2105/AJPH.2017.303745. Epub 2017 Apr 20.
To examine a potential increase in marijuana initiation among US college students as compared with their age peers not in college before and after 2013, a watershed year for increasing tolerance of marijuana use in the United States.
Data come from the Monitoring the Future study, which has followed longitudinal panels drawn from annual nationally representative, baseline samples of 12th-grade students starting with the class of 1976. We studied panel members aged 19 to 22 years who had never used marijuana by 12th grade between 1977 and 2015.
College as a risk factor for marijuana initiation has increased significantly since 2013. The increased probability of past-year marijuana use for those enrolled versus not enrolled in college was 51% in 2015, 41% in 2014, and 31% in 2013; it averaged 17% to 22% from 1977 to 2012 among youths who had never used marijuana by 12th grade.
College has grown as a risk factor for marijuana initiation since 2013. Public Health Implications. College students are in position to usher in new increases in population marijuana use unless colleges soon address the issue with new or modified programs for marijuana prevention and intervention.
研究与未上大学的同龄人相比，2013年前后美国大学生开始使用大麻的可能性是否有所增加。2013年是美国大麻使用容忍度提高的一个分水岭年份。
数据来自“未来监测”研究，该研究追踪了自1976届起从每年全国代表性的12年级学生基线样本中抽取的纵向样本。我们研究了1977年至2015年间在12年级之前从未使用过大麻的19至22岁的样本成员。
自2013年以来，大学作为开始使用大麻的一个风险因素显著增加。2015年，上大学的人与未上大学的人相比，过去一年使用大麻的概率增加了51%，2014年为41%，2013年为31%；在12年级之前从未使用过大麻的年轻人中，1977年至2012年期间这一概率平均为17%至22%。
自2013年以来，大学作为开始使用大麻的风险因素在增加。对公共卫生的影响。大学生有可能导致大麻使用在人群中的新增加，除非大学很快通过新的或改进的大麻预防和干预计划来解决这个问题。
