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[Correspondence] E-cigarettes: the need for clear communication on relative risks

The Lancet Editorial1 criticises our Public Health England commissioned evidence update report2 on the basis of perceived flaws in one of the 185 references we used, ignoring the rest of our 111 page document, which addresses population effects of e-cigarette use, regulations, attitudes as well as concerns over its safety. The Editorial focuses on the estimate of risk reduction and protests strongly against the media reassuring smokers that switching to e-cigarettes provides substantial health benefits, but it provides no data to counter our estimate, nor any reason as to why The Lancet believes that the message smokers can benefit from switching to vaping is an undesirable one.