Synthetic Cannabinoid Use Among High School Seniors.

Objectives: In this study, we examined the prevalence and correlates of current synthetic cannabinoid (SC) use among high school seniors in the United States.

Methods: Monitoring the Future, an annual nationally representative survey of high school seniors, began querying current (30-day) SC use in 2014. Data were examined from the 2 most recent cohorts (2014-2015; = 7805). Prevalence of self-reported use was examined and differences in demographics and recency and frequency of other drug use was compared between current marijuana-only users and current SC (plus marijuana) users using χ and generalized linear model using Poisson.

Results: We found that 2.9% of students reported current SC use; 1.4% of students (49.7% of users) reported using SCs on ≥3 days in the past month. SC users were more likely to report more recent (and often more frequent) use of lysergic acid diethylamide, cocaine, heroin, and/or nonmedical use of opioids compared with marijuana-only users. Compared with current marijuana-only users, SC users were more likely to report lower parent education ( < .05) and current use of a higher number of illegal drugs other than marijuana (s < .001). Students using SCs ≥10 times in the past month were more likely to be boys, frequent marijuana users (s < .01), African American, and users of multiple other illegal drugs (s < .001).

Conclusions: SC use is typically part of a repertoire of polydrug use, and polydrug use is less prevalent among marijuana-only users. Current SC users are at risk for poisoning from use of the newest generation of SCs and from concurrent drug use.