Extract
2014年,Cochrane综述得出结论,佤邦s evidence from two randomised controlled trials (RCTs) that electronic cigarettes help smokers to stop smoking long term. The confidence in the result was rated “low”. In 2016, the same conclusion was reached. In the recently published 2020 update [1], the authors write that they included 50 completed studies, representing 12 430 participants. When you read closer, the smoking cessation conclusions are based on 12 RCTs, and half of these were small studies. The authors judged only four of the studies to be at low risk of bias [2–5].
Abstract
There are several concerns regarding the review. Contradicting results from cohort studies were not considered. Smoking cessation rates achieved with e-cigarettes are low. The harms of long-term e-cigarette use will outweight the potential benefit.https://bit.ly/3khrzBZ
Footnotes
Conflict of interest: C. Pisinger has nothing to disclose.
Conflict of interest: J. Vestbo reports personal fees for advisory board work and lectures from AstraZeneca, Boehringer Ingelheim, Chiesi, GSK and Novartis, and grants from Boehringer Ingelheim outside the submitted work.
- ReceivedNovember 2, 2020.
- AcceptedNovember 5, 2020.
- Copyright ©ERS 2020