We may have more luck with e-cigarettes than nicotine patches or gum, according to a new study published in the New England Journal of Medicine. The clinical trial, which involved almost 900 smokers in the UK, found 18 percent of e-cigarette users were smoke-free after a year, compared to 9.9 percent of people using nicotine-replacement products such as patches, gum, lozenges and sprays. Lead researcher from Queen Mary University of London, said although e-cigarettes were commonly used in attempts to stop smoking, there wasn't much evidence they actually helped.

"Health professionals have been reluctant to recommend their use because of the lack of clear evidence from randomised control trials. This is now likely to change," Professor said. During the trial, participants received either a three-month supply of a nicotine-replacement product (or combination of products), or an…