NITROX - Enhanced Lung Cancer Risk ?

[Bob DBF]

From the linked article:

Kamen Simeonov, from the University of Pennsylvania, and Daniel Himmelstein, from the University of California at San Francisco, compared cancer rates across 250 western counties in the US with varying altitude levels.

With a methodology like that, you get the numbers and then can speculate on the reasons. Kind of like a ScubaBoard thread. In addition, as you are not even actually interviewing any subject of the study, you don't even know how long the subjects even lived at said elevation.

These type of studies are interesting, but are too general to draw any accurate conclusions. A lot of times that studies make their way to the public is that the conclusions drawn by the news-writer are provocative and can used to generate publicity for the news media rather than be very helpful.




Bob
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