Abstract
BACKGROUND: K2 and Spice consist of an herbal blend of plant matter and chemical synthetic cannabinoids. These substances emerged in the early 2000s as a popular alternative to marijuana among youth and young adults. OBJECTIVES: This study sought to identify rates and correlates of K2 and Spice at college entry and first use during college. METHODS: In Fall 2010, 3146 students at 11 colleges in North Carolina and Virginia were recruited to participate in a longitudinal cohort survey. The cohort was invited to participate in a total of six surveys over their college career. Random-effects logistic regression models were used to identify factors associated with lifetime K2 and Spice use at college entry and first use during college, adjusting for clustering within schools and sample weights. RESULTS: Weighted lifetime prevalence of K2 and Spice use at college entry was 7.6%. An additional 6.6% of students reported first use during college. By the cohort's fourth year, 17.0% reported lifetime K2 and Spice use. While lifetime prevalence increased, past 6-month prevalence decreased substantially over time. K2 and Spice use at college entry was associated with sensation seeking; hookah, marijuana, and illicit drug use; and low religiosity. First use during college was associated with having a father with less than a four-year degree; alcohol and hookah use. CONCLUSION: Universities should ensure that prevention efforts address current substance use, including K2/Spice, and that treatment options are available for first year students who use substances.