Cohort Studyhigh evidence
The Risks of Mortality, Cardiovascular Events, and Pulmonary Complications in Cancer Patients Who Smoke Cigarettes and Switch to E-Cigarettes: South Korea, 2015‒2022.
American journal of public health·July 2, 2026·PMID 42391591
Why it mattersThis study provides real-world data on harm reduction in cancer patients who smoke, a population where continued smoking worsens outcomes. It clarifies that while e-cigarettes may reduce some risks compared to continued smoking, complete cessation remains superior, especially for pulmonary health.
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