OBJECTIVE To assess behavior change over 12 months in users of e-cigarettes ("vapers"). METHODS Longitudinal Internet survey, 2011 to 2013. Participants were enrolled on websites dedicated to e-cigarettes and smoking cessation. We assessed use of e-cigarettes and tobacco among the same cohort at baseline, after one month (n=477) and one year (n=367). RESULTS Most participants (72%) were for...

OBJECTIVE Electronic cigarettes (ECIGs) have continued to gain popularity among the general public since their introduction in 2003. While all ECIGs work by heating a liquid solution into an aerosol that is then inhaled by the user, there are differences in engineering characteristics and appearance of the devices as well as how the liquid is stored and heated, its nicotine concentration, its r...

Electronic cigarettes (e-cigarettes) are battery-powered devices that deliver nicotine in the form of aerosol. We identify differences and associations in e-cigarette use by sociodemographic characteristics and describe the reported reasons for initiating use among Mississippi adults. We used the 2015 Mississippi Behavioral Risk Factor Surveillance System, which collected information on e-cigar...

The particle size distribution of aerosols produced by electronic cigarettes was measured in an undiluted state by a spectral transmission procedure and after high dilution with an electrical mobility analyzer. The undiluted e-cigarette aerosols were found to have particle diameters of average mass in the 250-450 nm range and particle number concentrations in the 10(9) particles/cm(3) range. Th...

Background: Electronic cigarette (e-cigarette) use is becoming popular among undergraduate students in Nigeria with a tendency for escalation because of the coronavirus disease 2019 (COVID-19) pandemic. Aim: The aim this study was to assess electronic COVID-19 era tertiary institution Lagos state, Southwestern Nigeria. Setting: A Methods: design descriptive cross-sectional pretested, structured...

BACKGROUND Most e-cigarette liquids contain flavour chemicals. Flavour chemicals certified as safe for ingestion by the Flavor Extracts Manufacturers Association may not be safe for use in e-cigarettes. This study identified and measured flavour chemicals in 30 e-cigarette fluids. METHODS Two brands of single-use e-cigarettes were selected and their fluids in multiple flavour types analysed b...

INTRODUCTION This study examined the effect of duration electronic cigarette (e-cigarette) use on e-cigarette dependence, frequency of use, and strength of nicotine solution as well as number of cigarettes smoked per day. METHODS Individuals were recruited at e-cigarette retail locations in a large Midwestern metropolitan city of the United States in July 2013. A total of 159 participants com...

The annual meeting of the National Cancer Research Institute (NCRI), held in Liverpool, UK, has a solid reputation of being a multidisciplinary conference. It brings the diverse cancer interests of the United Kingdom together, from funders to researchers to clinicians. Key themes for the coming year's innovation emerge. At this meeting, particularly notable topics were immunotherapy and prevent...