Observational report describes hospitalized EVALI cases in the United States

An observational report describes hospitalized cases of e-cigarette, or vaping, product use-associated lung injury (EVALI) among persons in the United States as of December 2019. The exposure was use of e-cigarette or vaping products. No comparator group was reported. The main finding was that persons have been hospitalized with this condition. No specific patient numbers, effect sizes, p-values, or confidence intervals were provided for this outcome. Safety and tolerability data, including adverse events and discontinuations, were not reported. The report did not detail specific study limitations, but the observational nature and absence of quantitative data are inherent constraints. The practice relevance was not explicitly stated, but the report serves as a descriptive alert about an association between vaping and serious lung injury, not as evidence of causation or treatment effect.