Association of vaping-related lung injuries with rates of e-cigarette and cannabis use across US states.

In the United States, states with higher rates of e-cigarette and cannabis use prior to the 2019 'e-cigarette or vaping product use-associated lung injury' (EVALI) outbreak had lower EVALI prevalence. These results suggest that EVALI cases did not arise from e-cigarette or cannabis use per se, but rather from locally distributed e-liquids or additives most prevalent in the affected areas.