Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8550781 | Regulatory Toxicology and Pharmacology | 2018 | 31 Pages |
Abstract
Puff topography is an important measure of how consumers use e-vapor products. The purpose of this study was to evaluate the feasibility of using SODIM Smoking Puff Analyzer Mobile Device (SPA/M) to measure puff topography during use of a prototype e-cigarette (e-cig) in exclusive cigarette smokers (CS) and e-cig users (EC) under ad lib conditions in a clinic. Adult CS (nâ¯=â¯13) and EC (EC; nâ¯=â¯10) completed a 7-hr use session with the e-cig (2% tobacco-derived nicotine by weight, cartridge based system approximately the size of a king size cigarette). E-liquid usage was determined from cartridge weight. CS also smoked a single cigarette with the SPA/M. The SPA/M reliably recorded puff parameters throughout the study period, with CS puffs averaging 47.9â¯Â±â¯18.2â¯ml volume, 2.3â¯Â±â¯0.8â¯s duration, and 21.5â¯Â±â¯4.6â¯ml/s flow rate. EC puffs averaged 53.4â¯Â±â¯19.2â¯ml volume, 3.0â¯Â±â¯1.3â¯s duration, and 19.6â¯Â±â¯5.0 flow rate. CS average e-liquid use was 292â¯Â±â¯214â¯mg and EC averaged 415â¯Â±â¯305â¯mg over 7â¯h. When compared to a single use of their own brand cigarettes, CS took longer (2.3â¯Â±â¯0.8 vs.1.7â¯Â±â¯0.4â¯s) puffs with similar puff volume (47.9â¯Â±â¯18.2 vs. 44.1â¯Â±â¯10.5â¯ml) from the e-cig prototype. The puff duration, flow rate and peak flow were significantly lower (pâ¯<â¯0.05) with the e-cigs compared to cigarettes. Experienced EC and CS appeared to use the e-cig prototype differently, which is consistent with the literature. The SPA/M could be a useful tool in assessing e-cig use behavior for regulatory purposes.
Keywords
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Authors
Andrea Rae Vansickel, Jeffery S. Edmiston, Qiwei Liang, Cheryl Duhon, Chris Connell, David Bennett, Mohamadi Sarkar,