E-cigarettes an evidence update A report commissioned by Public Health England

E-cigarettes: an evidence updatewhether they currently used e-cigarettes every day, some days or not at all. If not at all,they were asked if they ever used e-cigarettes “fairly regularly.” If not, whether they hadused only once or twice or more often than that. All who had used more than once ortwice, were asked a series of questions about their patterns of use: for how long theyhad used e-cigarettes (less than a month, 1–6 months, more than 6 months); whetherthey had ever used e-cigarettes daily for at least one week; if so for how long they hadused e-cigarettes daily. From these variables, a 3-level measure of intensity of e-cigarette usage was computed: 3 = intensive (used daily for at least 1 month); 2 =intermittent (more than once or twice but not daily for a month or more); 1 = non-use orat most once or twice.Borderud et al., 2014 (US)Patients were asked if they had used E-cigarettes within the past 30 days, with theresponse options being yes or no.Brose et al, 2015 and Hitchman et al., 2015 (GB)How often, if at all, do you currently use an electronic cigarette? [Asked of respondentswho had ever heard of e-cigarettes and had ever tried one.]1. Daily2. Less than daily, but at least once a week3. Less than weekly, but at least once a month4. Less than monthly5. Not at all6. Don't knowWhat electronic cigarette equipment do you currently use the most?1. A disposable electronic cigarette (non-rechargeable)2. A commercial electronic cigarette kit which is refillable with pre-filled cartridges3. A commercial electronic cigarette kit which is refillable with liquids4. A modular system (I use my own combination of separate devices: batteries, atomizers,etc.)5. Don’t knowBrown et al., 2014 (England)Which, if any, of the following did you try to help you stop smoking during the mostrecent serious quit attempt?1. E-cigarettes2. NRT bought over-the-counter3. No aid102