The effectiveness of e-cigarettes in smoking cessation is under debate. Informing smokers who are motivated to quit smoking about e-cigarettes may help them to make an informed decision about their use for smoking cessation, which, however, may also lead to unintended effects such as less quitting. This experimental study assessed the influence of providing tailored information about e-cigarettes in a web-based tailored smoking cessation intervention on participants' decision-making and smoking behavior. Adult smokers (N = 331) were randomized into a personalized eHealth intervention on (i) smoking cessation (control condition) or (ii) smoking cessation and information about e-cigarettes (intervention condition). Directly postintervention, participants in the intervention condition had more knowledge about e-cigarettes than participants in the control condition. Attitudes toward e-cigarettes were more positive among intervention participants than control participants, but the differences in attitude were less pronounced than the differences in knowledge and not consistent across items. At a 6-month follow-up, no between-condition differences were observed in the use of e-cigarettes as a smoking cessation method, the number of tobacco cigarettes smoked in the past 7 days, or other smoking outcomes.

中文翻译：

---

在数字戒烟干预中提供有关电子烟的定制信息的效果：随机对照试验。

电子烟在戒烟方面的有效性存在争议。告知有动机戒烟的吸烟者有关电子烟的信息可能有助于他们就其用于戒烟做出明智的决定，但是，这也可能导致意想不到的影响，例如戒烟减少。本实验研究评估了在基于网络的定制戒烟干预中提供有关电子烟的定制信息对参与者的决策和吸烟行为的影响。成年吸烟者 (N = 331) 被随机分配到针对 (i) 戒烟（控制条件）或 (ii) 戒烟和有关电子烟的信息（干预条件）的个性化 eHealth 干预中。直接干预后，干预条件下的参与者比控制条件下的参与者对电子烟有更多的了解。干预参与者对电子烟的态度比对照组参与者更积极，但态度差异不如知识差异那么明显，并且在项目之间不一致。在 6 个月的随访中，在使用电子烟作为戒烟方法、过去 7 天吸烟的数量或其他吸烟结果方面没有观察到条件间差异。