Cancer Research UK Health Behaviour Research Centre, University College London, UK; UK Centre for Tobacco and Alcohol Studies.
Cancer Research UK Health Behaviour Research Centre, University College London, UK; UK Centre for Tobacco and Alcohol Studies; National Centre for Smoking Cessation and Training, London, UK.
Addict Behav. 2014 Jun;39(6):1120-5. doi: 10.1016/j.addbeh.2014.03.009. Epub 2014 Mar 12.
E-cigarettes may be effective smoking cessation aids and their use by smokers has been growing rapidly. It is important to observe and assess natural patterns in the use of e-cigarettes whilst experimental data accumulates. This paper reports the prevalence of e-cigarette awareness, beliefs and usage, including brand choice, and characterises the socio-demographic and smoking profile associated with current use, among the general population of smokers and recent ex-smokers.
Data were obtained from 3538 current and 579 recent ex-smokers in a cross-sectional online survey of a national sample of smokers in Great Britain in November and December 2012. Differences between current and recent ex-smokers in the prevalence of e-cigarette awareness, beliefs and usage were examined and the socio-demographic and smoking profile associated with current use of e-cigarettes was assessed in a series of simple and multiple logistic regressions.
Ninety-three percent of current and recent ex-smokers (n=3841) were aware of e-cigarettes. Approximately a fifth (n=884) were currently using e-cigarettes, whilst just over a third (n=1507) had ever used them. Sixty-seven percent of the sample (n=2758) believed e-cigarettes to be less harmful than cigarettes; however, almost a quarter (n=994) remained unsure. Among both current and recent ex-smokers, the most popular reasons for using were health, cutting down and quitting (each >80%) and 38% used the brand 'E-lites'. Among current smokers who were aware of but had never used e-cigarettes, approximately half (n=1040) were interested in using them in the future. Among current smokers, their use was associated with higher socio-economic status (OR=1.48, 95%CI=1.25-1.75), smoking more cigarettes (OR=1.02, 95%CI=1.01-1.03) and having a past-year quit attempt (OR=2.82, 95%CI=2.38-3.34).
There is a near universal awareness of e-cigarettes and their use appears to be common among smokers in Great Britain although a quarter of all smokers are unsure as to whether e-cigarettes are less harmful than cigarettes. E-lites - a brand that delivers a low dose of nicotine - is the most popular. E-cigarette users appear to have higher socio-economic status, to smoke more cigarettes per day and to have attempted to quit in the past year.
电子烟可能是有效的戒烟辅助工具，其在吸烟者中的使用量正在迅速增长。在实验数据积累的同时，观察和评估电子烟使用的自然模式非常重要。本文报告了在英国全国吸烟者的横断面在线调查中，电子烟知晓率、信念和使用情况（包括品牌选择）的流行率，并描述了与当前使用相关的社会人口统计学和吸烟特征，包括当前吸烟者和近期戒烟者。
2012 年 11 月至 12 月，对英国全国吸烟者进行了一项横断面在线调查，共纳入 3538 名当前吸烟者和 579 名近期戒烟者。比较了当前吸烟者和近期戒烟者在电子烟知晓率、信念和使用情况方面的差异，并在一系列简单和多因素逻辑回归中评估了与当前使用电子烟相关的社会人口统计学和吸烟特征。
93%的当前吸烟者和近期戒烟者（n=3841）知晓电子烟。约五分之一（n=884）的人目前正在使用电子烟，而略多于三分之一（n=1507）的人曾经使用过电子烟。该样本中 67%（n=2758）的人认为电子烟比香烟危害小；然而，近四分之一（n=994）的人仍不确定。在当前吸烟者和近期戒烟者中，最受欢迎的使用原因是健康、减少吸烟量和戒烟（每项>80%），38%的人使用的品牌是“E-lites”。在知晓但从未使用过电子烟的当前吸烟者中，约一半（n=1040）有兴趣在未来使用电子烟。在当前吸烟者中，他们使用电子烟与较高的社会经济地位相关（OR=1.48，95%CI=1.25-1.75），与吸烟量更大（OR=1.02，95%CI=1.01-1.03）和过去一年有戒烟尝试（OR=2.82，95%CI=2.38-3.34）相关。
电子烟几乎为所有人所熟知，其在英国吸烟者中使用较为普遍，尽管仍有四分之一的吸烟者不确定电子烟是否比香烟危害小。E-lites 是一种尼古丁低剂量的品牌，是最受欢迎的品牌。电子烟使用者的社会经济地位似乎较高，每天吸烟量较大，且过去一年有戒烟尝试。
