Comparative systematic review on the safety of e-cigarettes and conventional cigarettes

This systematic review evaluated the health risks of electronic cigarettes (e-cigarettes) compared to traditional cigarettes. It examines various studies and research on the subject to provide a comprehensive analysis of potential health risks associated with both smoking methods. The systematic review, incorporating searches in PubMed, Scopus, Web of Science, and the Cochrane Library up to July 2023, examines the results obtained in relevant studies, and provides a critical discussion of the results. E-cigarettes exhibit reduced exposure to harmful toxins compared to traditional cigarettes. However, concerns persist regarding respiratory irritation and potential health risks, especially among youth, emphasizing the need for comprehensive, long-term research and protective legislation. •E-cigarettes.•Conventional cigarettes.•Health effects, safety.•Harm reduction.•Aerosols.•Nicotine.•Toxic compounds.