Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts, USA
Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA.
Tob Control. 2022 Aug;31(e1):e10-e17. doi: 10.1136/tobaccocontrol-2020-055999. Epub 2021 Jan 21.
Few studies assess whether electronic cigarette (e-cigarette) device characteristics or flavours impact longitudinal patterns of cigarette and e-cigarette use.
We examined data from waves 2-4 of the Population Assessment of Tobacco and Health Study (2014-2018). Among adult (≥18 years) current e-cigarette users at wave 2 who were current smokers (dual users; n=1759) and former smokers (exclusive e-cigarette users; n=470), we classified participants into four use patterns at wave 3 (12 months later) and wave 4 (24 months later): (1) dual use of e-cigarettes and cigarettes; (2) exclusive cigarette smoking; (3) exclusive e-cigarette use; (4) non-use of both products. We used multinomial logistic regression to assess correlates of changing use patterns at 24 months, relative to no change, adjusting for sociodemographic factors.
At 24 months, 26.5% of baseline exclusive e-cigarette users, and 9% of baseline dual users, abstained from both vaping and smoking. Participants who vaped non-tobacco flavours (vs tobacco flavours), and used refillable tank or modifiable devices (vs disposable, cartridges and other devices) were less likely to transition to non-use of both products and to exclusive cigarette smoking. Baseline daily vaping (vs non-daily) was positively associated with exclusive e-cigarette use at 24 months for baseline daily cigarette smokers, but negatively associated with exclusive e-cigarette use and non-use of both products at 24 months for baseline non-daily smokers.
Non-tobacco flavours, daily vaping and modifiable e-cigarette devices may help some smokers abstain from cigarette smoking via transitioning to exclusive e-cigarette use, but are also associated with ongoing exclusive e-cigarette use.
很少有研究评估电子烟设备的特点或口味是否会影响香烟和电子烟使用的纵向模式。
我们检查了 2014-2018 年人口烟草和健康评估研究（Population Assessment of Tobacco and Health Study，PATH）的第 2-4 波数据。在第 2 波时为当前电子烟使用者（同时也是当前吸烟者，即双重使用者；n=1759）和前吸烟者（仅使用电子烟者，即排他性电子烟使用者；n=470）的成年（≥18 岁）人群中，我们根据参与者在第 3 波（约 12 个月后）和第 4 波（约 24 个月后）的使用模式进行分类：（1）同时使用电子烟和香烟；（2）仅吸烟；（3）仅使用电子烟；（4）两种产品均不使用。我们使用多变量逻辑回归分析来评估 24 个月时相对于无变化的情况下，改变使用模式的相关因素，调整了社会人口因素。
在 24 个月时，基线时仅使用电子烟的参与者中有 26.5%，基线时同时使用电子烟和香烟的参与者中有 9%，已戒除两种产品的使用。与使用烟草味烟油（而非非烟草味烟油）以及使用可 refill 的 tank 或可改装的设备（而非一次性、cartridges 和其他设备）的参与者相比，前者更不可能转变为不使用两种产品和仅吸烟的模式。对于基线时每日吸烟的参与者，24 个月时每日使用电子烟（而非非每日使用）与仅使用电子烟呈正相关，但与 24 个月时仅使用电子烟和不使用两种产品呈负相关。
非烟草味烟油、每日使用电子烟和可改装的电子烟设备可能有助于一些吸烟者通过过渡到仅使用电子烟来戒除香烟，但也与持续使用电子烟有关。
