Considerable Prevalence of Δ8-THC Use Observed Among US Teens

Prevalence was lower in Western vs Southern census regions, in states with regulations, in states with legal adult-use marijuana.

HealthDay News — The prevalence of Δ8-tetrahydrocannabinol (THC) is considerable among US adolescents and is lower in states with regulations, according to a study published in the March 12 issue of the Journal of the American Medical Association.

Alyssa F. Harlow, PhD, from the University of Southern California in Los Angeles, and colleagues conducted a nationally representative cross-sectional analysis of a randomly selected subset of 12th-grade students in 27 US states to estimate the self-reported prevalence of and factors associated with Δ8-THC and marijuana use in the past 12 months.

The researchers found that the prevalence of self-reported use in the past 12 months was 11.4 and 30.4% for Δ8-THC and marijuana, respectively, in the sample of 2186 12th-grade students. Overall, 35.4% of the 295 participants reporting Δ8-THC use used it at least 10 times in the past 12 months. The prevalence of Δ8-THC use was lower in Western versus Southern census regions, states in which Δ8-THC was versus was not regulated, and states with versus without legal adult-use marijuana (adjusted relative risks, 0.35, 0.42, and 0.56, respectively). Past 12-month use was lower for Hispanic than White participants for both Δ8-THC and marijuana (adjusted relative risks, 0.54 and 0.74, respectively). There was no difference seen in the prevalence of Δ8-THC and marijuana use by sex or parental education.

“Δ8-THC use prevalence is appreciable among U.S. adolescents and is higher in states without marijuana legalization or existing Δ8-THC regulations,” the authors write. “Prioritizing surveillance, policy, and public health efforts addressing adolescent Δ8-THC use may be warranted.”

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