Recent rapid decrease in adolescents' perception that marijuana is harmful, but no concurrent increase in use
Recent rapid decrease in adolescents' perception that marijuana is harmful, but no concurrent increase in use
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DOI：
10.1016/j.drugalcdep.2017.12.041
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发表时间：
2018-05-01
影响因子：
4.2
通讯作者：
Hasin, Deborah S.
中科院分区：
文献类型：
--
作者：
Sarvet, Aaron L.;Wall, Melanie M.;Hasin, Deborah S.
背景：青少年大麻风险认知的国家趋势传统上被用作青少年大麻使用当前和未来趋势的预测因子。在大麻政策快速变化的时期，我们测试了这种做法的有效性。方法：美国8年级、10年级和12年级学生的两次重复横断面调查：监测未来（MTF） （1991-2015; N = 1,181,692）和全国药物使用和健康调查（NSDUH） （2002-2014; N = 113,317）。我们研究了认为经常使用大麻没有危害风险的逐年流行趋势，以及前一个月内经常使用大麻的流行趋势。一个分段线性回归模型检验了趋势之间关系的变化。类似的分析检查了过去一个月的使用情况，并控制了人口特征。结果：在MTF的12年级学生中，1991年至2006年期间，经常使用大麻的流行程度和风险认知发生了类似的变化，但之后出现了急剧分化。到2015年，普通大麻使用率上升了1个百分点，达到6.03%。相比之下，认为大麻不构成风险的12年级学生比例增加了11个百分点，达到21.39%。在控制人口特征的情况下，在NSDUH的12年级和其他年级的学生中也发现了类似的差异。结论：青少年大麻使用的增加并没有伴随着近期大麻风险认知的快速下降。政策制定者可能会考虑更广泛的预防策略，除了针对大麻的风险认知。随着各州将娱乐性大麻使用合法化，需要进一步监测大麻使用趋势的预测因素。
Background: National trends in adolescent's marijuana risk perceptions are traditionally used as a predictor of concurrent and future trends in adolescent marijuana use. We test the validity of this practice during a time of rapid marijuana policy change.Methods: Two repeated cross-sectional U.S. nationally-representative surveys of 8th, 10th, and 12th-graders: Monitoring the Future (MTF) (1991-2015; N = 1,181,692) and National Survey on Drug Use and Health (NSDUH) (2002-2014; N = 113,317). We examined trends in the year-to-year prevalence of perceiving no risk of harm in using marijuana regularly, and prevalence of regular marijuana use within the previous month. A piecewise linear regression model tested for a change in the relationship between trends. Similar analyses examined any past-month use and controlled for demographic characteristics.Results: Among MTF 12th-graders, the prevalence of regular marijuana use and risk perceptions changed similarly between 1991 and 2006 but diverged sharply afterward. The prevalence of regular marijuana use increased by similar to 1 percentage point to 6.03% by 2015. In contrast, the proportion of 12th-graders that perceived marijuana as posing no risk increased over 11 percentage points to 21.39%. A similar divergence was found among NSDUH 12th-graders and other grades, for any past month marijuana use, and when controlling demographic characteristics.Conclusions: An increase in adolescent marijuana use has not accompanied recent rapid decreases in marijuana risk perceptions. Policy makers may consider broader prevention strategies in addition to targeting marijuana risk perceptions. Further monitoring of predictors of marijuana use trends is needed as states legalize recreational marijuana use.