Risk factors

Cochrane review shows e-cigarettes can help people quit smoking

Jamie Hartmann-Boyce and Nicola Lindson

Senior Research Fellow, Centre for Evidence-Based Medicine, University of Oxford; Senior Researcher, Nuffield Department of Primary Care Health Sciences, University of Oxford, UK.

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E-cigarettes are a popular aid for quitting smoking, but it is taking time for scientific research to catch up and provide clear answers on how well they work, and whether they are safe to use for this purpose. An updated Cochrane review of the evidence, covering 50 studies and more than 12,000 participants, now provides greater confidence ...

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