Associations between e-cigarette pack size and vaping frequency among U.S. adults.

Introduction:
This text is a summary of a research study examining the association between e-cigarette purchasing behavior and vaping frequency among U.S. adult e-cigarette current users. The study aims to provide insights that can inform the development of regulations regarding e-cigarette pack quantities.

Key Points:

* The study used data from the Tobacco Use Supplement to the Current Population Survey (TUS-CPS) from 2018-2019.
* The sample included adults who reported current e-cigarette use (N=2,413).
* The study examined the association between purchasing e-cigarettes by the box/pack or as singles and using e-cigarettes every day or somedays.
* Multivariable logistic regression models were used to control for demographic characteristics, flavored e-cigarette use, and other tobacco use.
* The results showed that 63.1% of respondents reported purchasing e-cigarettes as singles, while 36.9% reported buying by the box or pack.
* Among those who purchased by the box and singles, approximately 56% and 50% used e-cigarettes every day, respectively.
* Those who reported purchasing by the box/pack had greater odds of every day e-cigarette use compared to some day use (Adjusted Odds Ratio: 1.36, 95% CI: 1.09, 1.68).
* This finding held for both males, females, and all device types.

Main Message:
The study suggests that purchasing e-cigarettes by the box or pack is associated with more frequent e-cigarette use among U.S. adult e-cigarette current users. These findings provide evidence that establishing minimum e-cigarette pack quantities could inhibit use, particularly among youth. This information can inform regulatory decisions regarding e-cigarette pack sizes and help reduce the public health impact of e-cigarette use.

Azagba S, King J, Shan L. Associations between e-cigarette pack size and vaping frequency among U.S. adults. Preventive medicine. 2021;143:106332. doi:10.1016/j.ypmed.2020.106332