Cochrane report: Difference between revisions
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[https://www.cochrane.org/CD010216/TOBACCO_can-electronic-cigarettes-help-people-stop-smoking-and-do-they-have-any-unwanted-effects-when-used Link to Cochrane report] | [https://www.cochrane.org/CD010216/TOBACCO_can-electronic-cigarettes-help-people-stop-smoking-and-do-they-have-any-unwanted-effects-when-used Link to Cochrane report] | ||
=What are the results of our review?= | |||
More people probably stop smoking for at least six months using nicotine e-cigarettes than using nicotine replacement therapy (3 studies; 1498 people), or nicotine-free e‑cigarettes (3 studies; 802 people). | |||
Nicotine e-cigarettes may help more people to stop smoking than no support or behavioural support only (4 studies; 2312 people). | |||
For every 100 people using nicotine e-cigarettes to stop smoking, 10 might successfully stop, compared with only six of 100 people using nicotine-replacement therapy or nicotine-free e-cigarettes, or four of 100 people having no support or behavioural support only. | |||
We are uncertain if there is a difference between how many unwanted effects occur using nicotine e-cigarettes compared with using nicotine-free e-cigarettes, nicotine replacement therapy, no support or behavioural support only. Similar low numbers of unwanted effects, including serious unwanted effects, were reported for all groups. | |||
The unwanted effects reported most often with nicotine e-cigarettes were throat or mouth irritation, headache, cough and feeling sick. These effects reduced over time as people continued using nicotine e-cigarettes. | |||
=How reliable are these results?= | |||
Our results are based on a small number of studies, and in some the measured data varied widely. | |||
We are moderately confident that nicotine e-cigarettes help more people to stop smoking than nicotine replacement therapy or nicotine-free e-cigarettes. However, these results might change if further evidence becomes available. | |||
We are less confident about how nicotine e-cigarettes compare with no support, or behavioural support, to stop smoking. | |||
Our results for the unwanted effects are likely to change when more evidence becomes available. | |||
=Key messages= | |||
Nicotine e-cigarettes probably do help people to stop smoking for at least six months. They probably work better than nicotine replacement therapy and nicotine‑free e-cigarettes. | |||
They may work better than no support, or behavioural support alone, and they may not be associated with serious unwanted effects. | |||
However, we need more, reliable evidence to be confident about the effects of e-cigarettes, particularly the effects of newer types of e-cigarettes that have better nicotine delivery. | |||
[[Category:Reports]] | [[Category:Reports]] |