E-cigarettes (EC) are widely used in general population and may facilitate smoking cessation. However, efficacy and addictive potential of EC remain insufficiently studied.

To characterize e-cigarette use and its impact on tobacco use/cessation.

Online survey was available on CEIP website (September 2014–March 2015). Questionnaire assessed smoking status, tobacco and e-cigarette use, including reasons for use, efficacy, adverse effects and dependence (Fagerström test of cigarette dependence [F] and an adapted version to e-cigarette use [Fm]).

One thousand one hundred and twenty-one EC users answered (1008 ex-smokers, 113 current smokers), with mean age of 39 ± 10 years and 72% female. Ninety-six percent e-cigarette users agreed that vaping is useful for tobacco cessation, 80% succeeded to quit/reduce their smoking. Reasons for EC use are partial/complete alternative to smoking, lower toxicity, less side effects and lower cost. Most of ex-smokers (66%) has no/low dependence to EC (Fm ≤ 4) since current smokers reduced dramatically their tobacco consumption by EC use. Among all EC users, 75% had a craving for EC. Use of EC is described as pleasant as tobacco for 59% ex-smokers and 39% smokers. Eighty-three percent of ex-smokers and 68% of smokers do not intend to stop vaping.

E-cigarettes are used primarily for smoking cessation and show effectiveness for harm-reduction, but a secondary dependence to nicotine contains in EC can be observed (Figure 1).

The authors have not supplied their declaration of competing interest.