Tobacco Dependence Research Unit, Wolfson Institute of Preventive Medicine, Queen Mary University of London, 55 Philpot Street, London, E1 2JH, UK.
Pediatrics. 2012 Oct;130(4):e879-85. doi: 10.1542/peds.2011-3448. Epub 2012 Sep 17.
Electronic cigarettes (e-cigarettes) are battery-powered devices developed with the goal of mimicking the action of smoking, including nicotine delivery, without the toxic effects of tobacco smoke. Little is known about the uptake of e-cigarettes among young people.
A survey was conducted with a cluster sample of 20240 students enrolled at 176 nationally representative Polish high schools and universities between September 2010 and June 2011. We estimated national e-cigarette prevalence among various demographic groups by using population weights. Multiple logistic regression was used to evaluate which demographic factors were independent predictors of 2 outcomes: ever use of e-cigarettes and use in the previous 30 days.
Among high school students, aged 15 to 19 years, 23.5% had ever used e-cigarettes and 8.2% had done so within the previous 30 days. Among those in universities, aged 20 to 24 years, 19.0% had ever used an e-cigarette and 5.9% had done so in the previous 30 days. In multivariate analyses that controlled for covariates, smoking cigarettes, male gender, living in an urban area, and having parents who smoke were associated with ever use of e-cigarettes. Overall, 3.2% of never smoking students reported ever use of e-cigarettes.
About one-fifth of Polish youth have tried e-cigarettes; most of them had previously smoked cigarettes. It is unclear whether e-cigarettes are just a novelty that young people try only once or whether they have potential to compete in the marketplace with conventional cigarettes.
电子烟是一种电池供电的设备，其设计目的是模仿吸烟的动作，包括输送尼古丁，但没有烟草烟雾的有毒影响。目前对于年轻人吸电子烟的情况了解甚少。
我们对 2010 年 9 月至 2011 年 6 月期间在波兰 176 所具有代表性的高中和大学中注册的 20240 名学生进行了一项以群组为样本的调查。我们使用人口权重来估计各个年龄段电子烟的全国流行率。多因素逻辑回归用于评估哪些人口统计学因素是两个结果（曾经使用电子烟和在过去 30 天内使用）的独立预测因素。
在 15 至 19 岁的高中生中，有 23.5%曾经使用过电子烟，8.2%的人在过去 30 天内使用过电子烟。在 20 至 24 岁的大学生中，有 19.0%曾经使用过电子烟，5.9%的人在过去 30 天内使用过电子烟。在控制了协变量的多变量分析中，吸烟、男性、居住在城市地区以及父母吸烟与曾经使用电子烟有关。总体而言，3.2%的从未吸烟的学生报告曾经使用过电子烟。
大约五分之一的波兰青年尝试过电子烟；其中大多数人以前吸过香烟。目前尚不清楚电子烟只是年轻人尝试过一次的新奇产品，还是它们有可能在市场上与传统香烟竞争。
