First‐ versus second‐generation electronic cigarettes: predictors of choice and effects on urge to smoke and withdrawal symptoms

Introduction:
This text is a research report on the comparison between first-generation and second-generation electronic cigarettes (e-cigarettes). The study aims to estimate predictors of e-cigarette choice and determine whether a second-generation device is superior for reducing urge to smoke and withdrawal symptoms (WS) and enhancing positive subjective effects. The study is set in the University of East London, UK, and includes a mixed-effects experimental design. A total of 97 smokers participated in the study, with equal numbers choosing each device.

Key points:

* The study used a mixed-effects experimental design to compare first-generation and second-generation e-cigarettes.
* Equal numbers of participants chose each device, but none of the predictor variables (gender, age, tobacco dependence, previous e-cigarette use) accounted for choice.
* Only baseline urge to smoke/WS predicted urge to smoke/WS 10 minutes after use.
* Those using the second-generation device were more likely to report satisfaction and use in a quit attempt.
* First- and second-generation e-cigarettes appear to be similarly effective in reducing urges to smoke during abstinence, but second-generation devices appear to be more satisfying to users.

Main message:
The study suggests that both first- and second-generation e-cigarettes are effective in reducing urges to smoke during abstinence, but second-generation devices appear to be more satisfying to users. This finding is important for regulatory matters, as e-cigarettes are becoming increasingly popular, and their regulation is a subject of furious public health debate. Some advocate e-cigarettes as a potential lifesaver, while others fear they could re-normalize smoking and appeal to non-smokers. The study's findings suggest that more research is needed to determine the long-term effects of e-cigarette use and their potential impact on public health. Overall, the study highlights the importance of considering the user's experience and satisfaction when regulating e-cigarettes, as these factors may influence their use and potential impact on smoking cessation.

Dawkins, Lynne, Catherine Kimber, Yasothani Puwanesarasa, and Kirstie Soar. “First‐ versus Second‐generation Electronic Cigarettes: Predictors of Choice and Effects on Urge to Smoke and Withdrawal Symptoms.” Addiction 110, no. 4 (April 2015): 669–77. https://doi.org/10.1111/add.12807.