Social Development Research Group, School of Social Work, University of Washington, 9725 Third Ave NE, Suite 401, Seattle, WA, 98115, USA.
Drug Alcohol Depend. 2021 Oct 1;227:108940. doi: 10.1016/j.drugalcdep.2021.108940. Epub 2021 Jul 28.
Evidence for use of electronic cigarettes (e-cigs) as a potential aid in quitting or reducing combustible cigarette (c-cig) use is mixed. This study examined the extent to which e-cig initiation among smokers in their 30 s predicted quitting or reducing smoking or nicotine dependence symptoms by age 39, and whether the role of e-cigs in quitting differed by prospectively assessed moderators.
Data were from the Seattle Social Development Project (SSDP), a panel study of 808 diverse participants with high retention. A subsample of 221 smokers at age 33 was selected for analysis. Self-reports of c-cig use and dependence were assessed longitudinally at ages 33 and 39. Sixteen potential moderators were examined, including social demographics, smoking attitudes and desire to quit, other health behaviors and status, and adolescent and early adult assessments of smoking history.
The use of e-cigs was consistently associated with a lower likelihood of quitting c-cigs by age 39, after accounting for frequency of prior c-cig use at age 33. This negative association persisted across all moderators examined, although it was nonsignificant among those with a definite desire to cut down. Among those who did not quit smoking, e-cig use had no association with decreases in either quantity of c-cigs used or dependence symptoms.
Results indicate that e-cigarette use was not helpful for quitting or reducing combustible cigarette use in the 30 s. Rather, across extensive tests of moderation, e-cig initiation consistently predicted less quitting during this important age period for successful cessation.
电子烟（e-cigs）作为戒烟或减少可燃香烟（c-cig）使用的潜在辅助工具的证据喜忧参半。本研究考察了 30 多岁吸烟者开始使用电子烟的程度，以及其在 39 岁时戒烟或减少吸烟或尼古丁依赖症状的程度，以及电子烟在戒烟中的作用是否因前瞻性评估的调节因素而有所不同。
数据来自西雅图社会发展项目（SSDP），这是一项对 808 名具有高保留率的不同参与者进行的面板研究。选择了 221 名 33 岁吸烟者的子样本进行分析。33 岁和 39 岁时，纵向评估了可燃香烟的使用和依赖情况。共检验了 16 个潜在的调节因素，包括社会人口统计学、吸烟态度和戒烟意愿、其他健康行为和状况，以及青少年和成年早期吸烟史评估。
在考虑了 33 岁时可燃香烟使用频率的情况下，使用电子烟与 39 岁时戒烟的可能性降低有关。这种负相关关系在所有检验的调节因素中都存在，尽管在有明确戒烟意愿的人中不显著。对于那些没有戒烟的人来说，电子烟的使用与减少可燃香烟的使用量或依赖症状无关。
结果表明，在 30 多岁时，电子烟的使用对于戒烟或减少可燃香烟的使用并没有帮助。相反，在广泛的调节因素测试中，电子烟的使用始终预示着在这个成功戒烟的重要年龄阶段戒烟的可能性较低。
