Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, Minnesota.
Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, Minnesota.
Am J Prev Med. 2014 Feb;46(2):175-8. doi: 10.1016/j.amepre.2013.10.007.
Previous cross-sectional studies found that positive beliefs about electronic nicotine delivery systems (commonly known as electronic cigarettes or e-cigarettes) were associated with use of these products. However, the prospective association between these beliefs and subsequent use of e-cigarettes is unclear.
To identify the beliefs predicting subsequent use of e-cigarettes.
A total of 1379 young adults (mean age=24.1 years) from the Minnesota Adolescent Community Cohort who reported never using e-cigarettes at baseline (collected Oct 2010-Mar 2011) and completed follow-up data collection (during Oct 2011-Mar 2012) were included in this analysis. Participants' beliefs about e-cigarettes (potential as quit aids, harmfulness and addictiveness relative to cigarettes) were asked at baseline (yes/no). At follow-up, participants were asked if they had ever used e-cigarettes. Logistic regression models were used to assess the associations between beliefs about e-cigarettes and subsequent experimentation. Analysis was conducted in 2012.
At follow-up, 7.4% of the sample reported ever using e-cigarettes (21.6% among baseline current smokers, 11.9% among baseline former smokers, and 2.9% among baseline nonsmokers). Participants who believed e-cigarettes can help people quit smoking and perceived e-cigarettes to be less harmful than cigarettes at baseline were more likely to report experimenting with e-cigarettes at follow-up (p<0.05). These associations did not differ by smoking status.
Given that young adults are still developing their tobacco use behaviors, informing them about the lack of evidence to support e-cigarettes as quit aids and the unknown health risk of e-cigarettes may deter young adults from trying these products.
先前的横断面研究发现，对电子尼古丁传送系统（通常称为电子烟或电子香烟）的积极信念与这些产品的使用有关。然而，这些信念与随后使用电子烟之间的前瞻性关联尚不清楚。
确定预测随后使用电子烟的信念。
本分析共纳入了 1379 名来自明尼苏达州青少年社区队列的年轻人（平均年龄 24.1 岁），他们在基线时（2010 年 10 月至 2011 年 3 月收集）报告从未使用过电子烟，并完成了随访数据收集（2011 年 10 月至 2012 年 3 月）。在基线时询问参与者对电子烟的信念（作为戒烟辅助工具的潜力、相对于香烟的危害性和成瘾性）（是/否）。在随访时，询问参与者是否曾经使用过电子烟。使用逻辑回归模型评估电子烟信念与随后尝试使用电子烟之间的关联。分析于 2012 年进行。
在随访时，7.4%的样本报告曾经使用过电子烟（基线时当前吸烟者中为 21.6%，前吸烟者中为 11.9%，非吸烟者中为 2.9%）。在基线时认为电子烟可以帮助人们戒烟并认为电子烟比香烟危害小的参与者更有可能在随访时报告尝试使用电子烟（p<0.05）。这些关联在吸烟状况之间没有差异。
鉴于年轻人仍在发展他们的烟草使用行为，告知他们缺乏支持电子烟作为戒烟辅助工具的证据以及电子烟的未知健康风险可能会阻止年轻人尝试这些产品。
