Cavalcante Tânia Maria, Szklo André Salem, Perez Cristina de Abreu, Thrasher James F, Szklo Moyses, Ouimet Janine, Gravely Shannon, Fong Geoffrey T, Almeida Liz Maria de
Instituto Nacional de Câncer José Alencar Gomes da Silva, Rio de Janeiro, Brasil.
Fundação do Câncer, Rio de Janeiro, Brasil.
Cad Saude Publica. 2017 Sep 21;33Suppl 3(Suppl 3):e00074416. doi: 10.1590/0102-311X00074416.
Given the uncertainties regarding electronic cigarettes' (e-cigs) impact on health, in 2009 Brazil prohibited sales, importation or advertisements of these products until manufacturers are able to show they are safe and/or effective in smoking cessation. This study sought to analyze: (1) awareness of electronic cigarettes, ever-use and recent use; (2) perception of harmfulness of electronic cigarettes when compared with conventional cigarettes; and (3) correlates of awareness and perception of harmfulness. This is a cross-sectional study among Brazilian smokers (≥ 18 years) using the Wave 2 replenishment sample of the Brazilian International Tobacco Control Policy Evaluation Survey. Participants were recruited in three cities through a random-digit dialing sampling frame between October 2012 and February 2012. Among the 721 respondents, 37.4% (n = 249) of current smokers were aware of e-cigs, 9.3% (n = 48) reported having ever tried or used e-cigs and 4.6% (n = 24) reported having used them in the previous six months. Among those who were aware of e-cigs, 44.4% (n = 103) believed they were less harmful than regular cigarettes (low perception of harmfulness). "Low perception of harmfulness" was associated with a higher educational level and with having recently tried/used e-cigs. Despite restrictions to e-cigs in Brazil, 4.6% of sample smokers reported having recently used them. Health surveillance programs in Brazil and other countries should include questions on use and perceptions of e-cigs considering their respective regulatory environments.
鉴于电子烟对健康的影响存在不确定性，2009年巴西禁止销售、进口或宣传这些产品，除非制造商能够证明其在戒烟方面是安全的和/或有效的。本研究旨在分析：（1）对电子烟的知晓情况、曾经使用情况和近期使用情况；（2）与传统香烟相比，对电子烟有害性的认知；（3）知晓情况和有害性认知的相关因素。这是一项针对巴西吸烟者（≥18岁）的横断面研究，使用巴西国际烟草控制政策评估调查的第二轮补充样本。2012年10月至2012年2月期间，通过随机数字拨号抽样框架在三个城市招募了参与者。在721名受访者中，37.4%（n = 249）的当前吸烟者知晓电子烟，9.3%（n = 48）报告曾经尝试或使用过电子烟，4.6%（n = 24）报告在过去六个月内使用过电子烟。在知晓电子烟的人中，44.4%（n = 103）认为它们比普通香烟危害小（低危害认知）。“低危害认知”与较高的教育水平以及近期尝试/使用过电子烟有关。尽管巴西对电子烟有限制，但4.6%的样本吸烟者报告近期使用过电子烟。巴西和其他国家的健康监测项目应根据各自的监管环境，纳入关于电子烟使用和认知的问题。
