Content analysis of e-cigarette products, promotions, prices and claims on Internet tobacco vendor websites, 2013–2014

Objective To identify the population of Internet e-cigarette vendors (IEVs) and conduct content analysis of products sold and IEVs’ promotional, claims and pricing practices. Methods Multiple sources were used to identify IEV websites, primarily complex search algorithms scanning over 180 million websites. In 2013, 32 446 websites were manually screened, identifying 980 IEVs, with the 281 most popular selected for content analysis. This...