Introduction

A surge in popularity of e-cigarettes prompts concern given the association between e-cigarettes and future cigarette use. However, much of the evidence for this association comes from early, less efficient, and lower nicotine e-cigarettes than are available and widely used now. The goal of this study was to examine the relationship between e-cigarette use in 2018 and subsequent smoking initiation and continued e-cigarette use.

Methods

Participants included members of a national longitudinal panel of youth and young adults aged 15–27 who, in 2017, reported never having used a nicotine containing product (n = 3360). Logistic regression analyses assessed associations between participants’ self-reported ever e-cigarette use in 2018 and ever cigarette use, current cigarette use, and current e-cigarette use in 2019, after controlling for demographic and psychosocial variables.

Results

Compared with those who still had never used an e-cigarette, those who reported ever e-cigarette use in 2018 had significantly higher odds of ever cigarette use (aOR = 7.29, 95% CI [4.10, 12.97]), current cigarette use (aOR = 8.26, 95% CI [3.17, 21.53]), and current e-cigarette use (aOR = 9.70, 95% CI [6.41, 14.69]) one year later in 2019.

Conclusions

These findings show that the pod mod style, high nicotine containing e-cigarettes subject young users to the same risks of transitioning to combustible cigarettes as their earlier, less efficient predecessors. Strong regulation of all nicotine products, including e-cigarettes, is needed to prevent the trajectory of e-cigarette to cigarette use among youth and young adults.

中文翻译：

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电子烟的使用与未来可燃香烟的使用之间的关联：2017-2019年青少年群体的证据。

介绍

由于电子烟与未来香烟使用之间的关联，电子烟的流行激增引起人们的关注。但是，这种关联的许多证据来自比现在可用和广泛使用的早期，效率低和尼古丁含量低的电子烟。这项研究的目的是检查2018年使用电子烟与随后开始吸烟和继续使用电子烟之间的关系。

方法

参加者包括全国纵向青年和青年15至27岁成年人小组成员，他们在2017年报告从未使用过含尼古丁的产品（n = 3360）。逻辑回归分析在控制了人口和社会心理变量之后，评估了参与者自我报告的2018年曾经使用过的电子香烟与2019年曾经使用过的香烟，当前香烟使用情况和当前电子香烟使用之间的关联。

结果

与仍从未使用过电子烟的人相比，那些报告在2018年曾经使用过电子烟的人与曾经使用过香烟的几率显着更高（aOR = 7.29，95％CI [4.10，12.97]）（ aOR = 8.26，95％CI [3.17，21.53]），以及一年后的2019年当前的电子烟使用量（aOR = 9.70，95％CI [6.41，14.69]）。

结论

这些发现表明，豆荚调制风格，高烟碱含量的电子烟使年轻使用者与早期，效率较低的前辈一样，有过渡到可燃香烟的风险。需要对所有尼古丁产品（包括电子烟​​）进行有力的监管，以防止青少年在年轻人中使用电子烟到吸烟的轨迹。