Electronic cigarettes could increase the number of people who stop smoking compared to nicotine replacement therapy – such as chewing gum and patches – according to research involving the University of East Anglia.
new Cochrane review published today also shows that e-cigs help people stop more than just quitting smoking without any treatment.
he research team updated a Cochrane Review that compares the effects of electronic cigarettes with other ways of delivering nicotine – such as patches and chewing gum – or with dummy electronic cigarettes that do not contain nicotine or no treatment.
This updated review now includes 50 studies, an increase of 35 studies since it was last published in 2016. Twenty-four of these are uncontrolled studies, but their results support the data from the randomized controlled trials.
The researchers identified three studies, in 1498 people, that compared nicotine-containing electronic cigarettes with nicotine replacement therapy given as patches or gum. The results showed that more people quit smoking if they used electronic cigarettes containing nicotine than if they used another form of nicotine replacement.
If six people in 100 quit by using nicotine replacement therapy, 10 people in 100 would quit by using electronic cigarettes containing nicotine. This means an additional four people in 100 could potentially quit smoking with nicotine containing electronic cigarettes.
Similar results were seen in another three studies, involving 802 people, which compared nicotine-containing electronic cigarettes with electronic cigarettes that did not contain nicotine.
Evidence from four studies (2312 people) showed that more people who used nicotine-containing electronic cigarettes quit smoking than those who received only behavioral support or no support. If four people in 100 quit with no support, an additional six people in 100 might quit by using nicotine electronic cigarettes.
[Electronic cigarettes are an evolving technology. Modern electronic cigarette products have better nicotine delivery than the early devices that were tested in the trials we found, and more studies are needed to confirm whether quit rates are affected by the type of electronic cigarettes being used.
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