E-cigarette sales increased with fluctuations by product and flavor type from 2014 to 2020E-cigarette sales in the U.S. increased from 2014 to 2020, with product and flavor shifts

This observational report describes e-cigarette unit sales in the United States from 2014 to 2020. The analysis examined sales trends overall and by product and flavor type. No details on the specific population, sample size, intervention, comparator, or primary outcome were reported.

The main finding was that e-cigarette sales increased during the study period. However, the report noted there were fluctuations in sales both overall and when broken down by product and flavor type. No specific effect sizes, absolute numbers, or statistical measures (like p-values or confidence intervals) were provided for these trends.

Safety and tolerability data were not reported. Key limitations include the purely descriptive and observational nature of the data, which cannot establish causality or link sales to specific user behaviors or health outcomes. The lack of reported methodological details (population, funding) further limits interpretation. For clinicians, this report provides context on market availability but offers no direct evidence on clinical use, patient exposure, or health effects.