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Stephen Hampshire

I good example of why relative risks are a terrible way to communicate. I suspect they get used because they tend to make exciting headlines.

Gerd Gigerenzer has a great article on the BMJ website on communicating risk: http://www.bmj.com/cgi/content/extract/327/7417/741

Radford Neal

Of course, the "deadly as taking arsenic" comment is just as ridiculous. Depending on how much arsenic you take, the risk of death from taking arsenic varies continuously from 0 to 100%, so one can add this comment to any article about something that that has any risk at all.

I notice that the article also doesn't consider the possibility that the increased vitamin D production might outweight the risk of cancer. Of course, there's a long history of people who ought to know better warning about the risk of sun exposure without mention vitamin D, which verges on being criminally irresponsible.

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