E-cigarette unit sales increased in the United States from 2020 to 2022

An observational report analyzed e-cigarette unit sales in the United States from January 2020 through December 2022. The report examined sales by product and flavor type and tracked top-selling brands. The main finding was an increase in e-cigarette unit sales during this period. No specific numerical data on the magnitude of the increase, effect sizes, or statistical significance were reported.

No intervention, exposure, comparator, or primary outcome was specified in the report. The analysis focused solely on sales data. Safety, tolerability, and adverse event data were not reported, as this was a market surveillance report rather than a clinical study.

Key limitations include the observational nature of the data, which cannot establish causality or link sales to individual use patterns. The sample size and specific methodology for data collection were not reported. The funding sources and potential conflicts of interest were also not disclosed.

The practice relevance of this report is limited to public health surveillance. It indicates a continued commercial presence of e-cigarettes but does not provide evidence on health outcomes, efficacy for smoking cessation, or comparative risks. Clinicians should interpret this as descriptive market data, not clinical evidence.