Marijuana use trajectories among drug-using youth presenting to an urban emergency department: Violence and social influences.
Marijuana use trajectories among drug-using youth presenting to an urban emergency department: Violence and social influences.
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DOI：
10.1016/j.drugalcdep.2016.11.040
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发表时间：
2017-04-01
影响因子：
4.2
通讯作者：
Cunningham RM
中科院分区：
文献类型：
--
作者：
Walton MA;Epstein-Ngo Q;Carter PM;Zimmerman MA;Blow FC;Buu A;Goldstick J;Cunningham RM
This paper examined longitudinal marijuana use trajectories among drug-using youth presenting to the ED to inform intervention development. Given interest in substance use and violence, this study oversampled those presenting with assault injuries. Assault-injured youth (ages 14-24) endorsing past 6-month drug use (n=349), and a sex and age proportionally-sampled comparison group (n=250) endorsing drug use, completed a baseline assessment and follow-ups at 6, 12, 18, and 24 months. Latent class trajectory analyses examined days of marijuana use over 2 years. Multinomial regression analyses examined baseline, 12-month and 24-month factors associated with substance use trajectory groups. Trajectory analyses identified 5 groups: Low (Low; 28.2%; n=169); Intermittent (INT; 16.2%; n=97); Moderate Decline (MD; 12.0%; n=72); High decline (HD, 13.2%; n=79) and Chronic (C; 30.4%; n=182). At baseline, as compared to the Low group, the other trajectory groups were more likely to be male and have greater levels of physical aggression. At 12- and 24-months, negative and positive peer influences, incarceration and community violence were additional characteristics associated with the greater marijuana use trajectories (as compared to the Low group). Interventions for drug-using youth presenting to the urban ED should address peer influences, physical aggression and community violence exposure, given the association between these characteristics and greater marijuana use trajectories.
