The Maths of Pointless Numbers

In an idle moment in a place I cannot recall, but may have been the local takeaway, I read the Daily Express, an unusual event.  And I read an article entitled “CANCER RISK OF JUST TWO GLASSES OF WINE A DAY”  which demonstrated exactly why not the read the Daily Express if you wish to retain your sanity.

This is how the Express sensitively rendered the story…

As_the_Daily_Express_sees_it

The particular issue raised by this non-news story has been rolling around the back of my brain for a while, however the creative forces have been battling with perfectionist tendencies, fending off a full research project on the many different life risks, probabilities thereof, and the mechanisms of converting annual probabilities into life-time ones, and all manner of analytical delights.

So to break the log-jam (and get a life in between), I have crayoned  the issue, rather than the full Powerpoint…

Getting_things_in_perspective

You can find all sorts of stats around the web about the probability of different life risks if you look – here and here, for example, and tease out interesting, contrarian nuggets.  Such as,  drowning is much more likely than a fatal dog attack, yet  there are many strait-jacketing laws on dangerous dogs, but no UK inland rescue force to save people who fall in the water, which paradox seems to defy common-sense.

The issue in the case of the Australian report is that the risk that is being increased by 75% is diddly-squat to start with, and (Diddly-Squat * 1.75) = Sweet FA (in the Maths of Pointless Numbers).  It is undoubtedly bad if it actually happens, but the probability is not something you can, or should, let dictate your life.

I suppose headlines like “Medicos issue report about irrelevant statistical findings that don’t matter” don’t sell papers, so  there must be people who enjoy a little frisson of fear, panic and anxiety over their breakfast corn flakes, and prepared to read the Express to get it….