E-cigarettes and smoking cessation: a prospective study of a national sample of pregnant smokers

BMC Public Health

Lindsay Doherty¹  Sean D. Cleary¹  Ichhya Pant²  Shawn C. Chiang²  Nandita Krishnan²  Lorien C. Abroms² 

[1] Department of Epidemiology, Milken Institute School of Public Health, The George Washington University;Department of Prevention and Community Health, Milken Institute School of Public Health, The George Washington University;

关键词: e-cigarettes;    mHealth;    pregnancy;    smoking cessation;    text messaging;   

DOI  :  10.1186/s12889-019-7299-7

来源: DOAJ

【 摘 要 】

Abstract Background Smoking during pregnancy has adverse health consequences for the mother and fetus. E-cigarettes could aid with smoking cessation but there is limited research on the prevalence and patterns of e-cigarette use, and their association with smoking cessation among pregnant smokers. Methods We conducted a secondary analysis of a randomized controlled trial of a text-messaging program for smoking cessation among a U.S. national cohort of pregnant smokers (n = 428). Outcomes assessed were trajectories of e-cigarettes use from baseline to one-month follow-up, and longitudinal association between e-cigarette use at baseline and smoking cessation at one-month follow-up. Results At baseline, 74 (17.29%) pregnant smokers used e-cigarettes in the past 30 days and 36 (8.41%) used e-cigarettes in the past 7 days. The primary reason stated for using e-cigarettes during pregnancy was for quitting. E-cigarette use between baseline and 1-month was inconsistent. Of 36 dual-users at baseline, 20 (55.56%) stopped using e-cigarettes by the 1-month follow-up and 14 initiated e-cigarette use. There was no evidence of an association between e-cigarette use at baseline and the primary smoking cessation outcome, 7-day point prevalence abstinence [adjusted odds ratio = 0.79, 95% confidence intervals = 0.33–1.92]. Conclusions A secondary analysis of a national sample of pregnant smokers indicates that use of e-cigarettes is inconsistent and is not associated with improved smoking cessation outcomes. There is an urgent need to further examine the risk and benefits of e-cigarette use, especially during pregnancy.

【 授权许可】

Unknown