E-cigs have mixed effect on quit attempts

Using e-cigarettes daily increases the chance of making a quit attempt and cuts cigarette consumption, according to a new British study. But using e-cigarettes daily does not seem to increase the likelihood of cessation. Indeed, an American study suggests that e-cigarettes may reduce the chances of quitting.

According to a web-based survey in Great Britain, 43.7% (n=508) of smokers who did not use e-cigarettes at baseline tried to quit during the next year. 52.5% (n=124) of people using e-cigarettes 'non-daily' and 64.9% (n=48) of daily users also made quit attempts. Overall, using e-cigarettes daily doubled the chances of quitting during the next year (odds ratio [OR] 2.11) after adjusting for confounders.