E-Cigarettes and smoking cessation: Evidence from a systematic review and meta-analysis

Abstract

Background: E-cigarettes are currently being debated regarding their possible role in smoking cessation and as they are becoming increasingly popular, the research to date requires investigation. Objectives: To investigate whether the use of e-cigarettes is associated with smoking cessation or reduction, and whether there is any difference in efficacy of e-cigarettes with and without nicotine on smoking cessation. Data Sources: A systematic review of articles with no limit on publication date was conducted by searching PubMed, Web of Knowledge and Scopus databases. Methods: Published studies, those reported smoking abstinence or reduction in cigarette consumption after the use of e-cigarette..