MedPage Today (10/8, Firth) reports a study found that “cannabis use increased among people with psychosis after states legalized the substance for recreational use.” Researchers observed that “in states where recreational cannabis was legalized, 30-day cannabis use increased by 9.53 percentage points among people with psychosis.” This increase “was well above the 3.3-percentage point increase in past-month cannabis use among the general population observed in a recent study. Sensitivity analyses in the current study showed no significant increase in cannabis use before cannabis retail outlets opened. Weekly use did not significantly change.” The study was published in JAMA Psychiatry.
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