Do tight belts give you throat cancer ?

23 Oct

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On 1st October the Daily Telegraph reported that wearing tight belts increased your risk of throat cancer. Unlike much popular science reporting this looked like a very straight report of a study, in that it explains the methodology of the study , details where it was published and even quotes one of the authors.

The story gets interesting for teaching purposes it you actually go to the original journal article, as it makes no reference to throat cancer ! What the study actually reports is a link between wearing tight belts and developing acid reflux, equally importantly it was only a very small study (24 participants) that ran for only a few days. It appears that the link to cancer came from an interview with one of the lead authors where he mentioned to small increase in cancer risk that acid reflux caused.

This story seems useful in both encouraging students to read original sources, but also makes a good point about how scientists communicate about science. A scientist talking to another scientist about a tiny increase in cancer risk, will come away with the idea that it isn’t much to worry about. One suspects that a member of the public (or worse, a journalist) would come away from such a conservation just with the phrase ‘CANCER RISK’.

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