A Longitudinal Study of Electronic Cigarette Use Among a Population-Based Sample of Adult Smokers: Association With Smoking Cessation and Motivation to Quit
A Longitudinal Study of Electronic Cigarette Use Among a Population-Based Sample of Adult Smokers: Association With Smoking Cessation and Motivation to Quit
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DOI：
10.1093/ntr/ntu200
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发表时间：
2015-02-01
影响因子：
4.7
通讯作者：
Hargraves, J. Lee
中科院分区：
文献类型：
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作者：
Biener, Lois;Hargraves, J. Lee
目的：越来越受欢迎的电子烟（电子烟）可能是最有前途的发展，但结束吸烟。然而，很少有证据表明使用这些药物有助于戒烟。我们调查了电子烟的使用是否会增加戒烟和/或对戒烟和戒烟动机产生有害影响。方法：在2011/2012年对美国2个大都市地区的成年人进行了调查，了解他们使用新型烟草产品的情况。2014年，对1,374名同意重新联系的基线吸烟者中的695名进行了随访（留存率：51%）。随访评估了他们的吸烟状况和电子烟使用史。受访者被归类为密集型用户（每天使用电子烟至少1个月），间歇性用户（经常使用，但不是每天超过1个月），和非用户/试用者（使用电子烟最多一次或两次）。结果：在随访中，23%是密集型用户，29%间歇性用户，18%使用过一次或两次，30%没有尝试过电子烟。控制人口统计学和烟草依赖的Logistic回归表明，电子烟密集使用者报告戒烟的可能性是非使用者/试用者的6倍（OR：6.07，95%CI = 1.11，33.2）。对于间歇性使用者，未观察到此类关系。间歇性使用电子烟与随访时戒烟动机的2个指标之一呈负相关。结论：每天使用电子烟至少1个月与随访时戒烟密切相关。对密集与间歇使用的潜在原因的进一步调查将有助于阐明电子烟使用，戒烟动机和戒烟之间的关联机制。
Aims: Increasingly popular electronic cigarettes (e-cigarettes) may be the most promising development yet to end cigarette smoking. However, there is sparse evidence that their use promotes cessation. We investigated whether e-cigarette use increases smoking cessation and/or has a deleterious effect on quitting smoking and motivation to quit.Methods: Representative samples of adults in 2 US metropolitan areas were surveyed in 2011/2012 about their use of novel tobacco products. In 2014, follow-up interviews were conducted with 695 of the 1,374 baseline cigarette smokers who had agreed to be re-contacted (retention rate: 51%). The follow-up interview assessed their smoking status and history of electronic cigarette usage. Respondents were categorized as intensive users (used e-cigarettes daily for at least 1 month), intermittent users (used regularly, but not daily for more than 1 month), and non-users/triers (used e-cigarettes at most once or twice).Results: At follow-up, 23% were intensive users, 29% intermittent users, 18% had used once or twice, and 30% had not tried e-cigarettes. Logistic regression controlling for demographics and tobacco dependence indicated that intensive users of e-cigarettes were 6 times more likely than non-users/triers to report that they quit smoking (OR: 6.07, 95% CI = 1.11, 33.2). No such relationship was seen for intermittent users. There was a negative association between intermittent e-cigarette use and 1 of 2 indicators of motivation to quit at follow-up.Conclusions: Daily use of electronic cigarettes for at least 1 month is strongly associated with quitting smoking at follow-up. Further investigation of the underlying reasons for intensive versus intermittent use will help shed light on the mechanisms underlying the associations between e-cigarette use, motivation to quit, and smoking cessation.