2013-2014年至2016-2017年电子烟品牌演变:卡塔尔世界杯8强波胆分析品牌网站分析%A Hsu,Greta %A Sun,Jessica Y %A Zhu,Shu-Hong %+加州大学圣地亚哥分校家庭医学与公共卫生系，9500 Gilman Drive, MC 0905, La Jolla, CA, 92093，美国，1 8583001056,szhu@ucsd.edu %K电子烟%K雾化%K尼古丁%K纵向研究%K互联网%K市场研究%D 2018 %7 12.03.2018 %9原文%J J Med internet Res %G English %X近年来，电子烟行业的规模和组织复杂性都有所增长，最引人注目的是2012年大型烟草公司的进入和电子烟商店的激增。许多品牌都有零售网站，展示电子烟的营销宣传，并直接向消费者销售。目前对不同类型电子烟品牌网站的构成演变的了解还不够充分。目的:本文介绍了2013-2014年调查的电子烟品牌网站到2016-2017年的演变情况，以及不同类型的电子烟生产商运营的网站目前的差异。方法:2016-2017年，我们重新访问了2013-2014年调查的466个电子烟品牌网站，其中288个是现存的，并确定了145个新的英文网站。我们比较了不同类型的电子烟生产商的产品设计、营销声明和基于年龄的警告:主要烟草公司、独立的电子烟商店和独立的互联网公司。结果:在2016-2017年调查的433个网站中，12个为大型烟草公司所有，162个经营实体电子烟店，259个仅经营互联网。83%(10/12)的烟草自有品牌销售封闭系统产品设计。 In comparison, 29.0% (47/162, P<.001) of vape shop and 55.2% (143/259, P=.06) of internet-only brands sold closed-system designs. Compared with vape shop and internet-only brands, tobacco-owned brands offered a smaller set of product models (P values <.001) and a narrower range of flavors (P values <.01), with greater emphasis on the traditional combustible cigarette flavors of tobacco and menthol (P values <.001). Tobacco-owned brands also offered a narrower range of nicotine options than the vape shops (P=.002) and were less likely to offer nicotine-free e-liquid compared with internet-only and vape shop brands (P values <.001). Finally, 83% (10/12) of tobacco-owned brand websites featured age verification pop-up windows. In comparison, only 50.2% (130/259) of internet-only brands (P=.01) and 60.5% (98/162) of vape shop brands (P=.06) featured age verification windows. Websites surveyed in both 2013-2014 and 2016-2017 became more likely to sell open-system mods (P<.001) and sold an increased number of product models (P<.001), flavors (P<.001), and nicotine options (P<.001). Prevalence of several types of claims decreased significantly, including indirect claims regarding smoking cessation (P<.001), claims regarding e-cigarettes as healthier (P<.001), less expensive (P<.001), and usable in more places (P<.001) compared with combustible cigarettes. Conclusions: The number of e-cigarette brands has not appeared to increase since 2014, even as website messaging evolved, with brands owned by tobacco companies and vape shops pulling in opposite directions. Brands owned by tobacco companies offered a limited range of e-cigarette products, whereas brands owned by vape shops emphasized a panoply of flavor and nicotine options. Furthermore, the Food and Drug Administration’s regulatory action may influence the types of e-cigarette products offered and the market shares of various companies. %M 29530840 %R 10.2196/jmir.8550 %U //www.mybigtv.com/2018/3/e80/ %U https://doi.org/10.2196/jmir.8550 %U http://www.ncbi.nlm.nih.gov/pubmed/29530840