E-cigarettes: an evidence update (here)
Published by Public Health England (PHE) in August 2015
• E-cigarettes are around 95% less harmful than smoking
• Almost all of the 2.6 million adults using e-cigarettes in Great Britain are current or ex-smokers, most of whom are using the devices to help them quit smoking or to prevent them going back to cigarettes
• There is no evidence so far that e-cigarettes are acting as a route into smoking for children or non-smokers. Very few adults and young people who have never smoked are becoming regular e-cigarette users (less than 1% in each group)
• Emerging evidence suggests some of the highest successful quit rates are now seen among smokers who use an e-cigarette and also receive additional support from their local stop smoking services.