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Re: Risks of low level radiation - New Scientist Article



 From: "Jacobus, John (OD/ORS)" <jacobusj@ors.od.nih.gov>



> Otto,

> I believe there were postings about soot or fine particles as being a cause

> for lung diseases in cities.  Could this be the confounding factor for which

> you are looking?

> 

> -- John 



John,

A good thought, but it's not. Cohen stratified his data into 5 levels, in

one case, from the "most-rural" to the "most-urban."  Each separate

(completely independent) set shows the same relationship between radon and

lung cancer.



Jim

 

> -----Original Message-----

> From: Otto G. Raabe [mailto:ograabe@UCDAVIS.EDU]

> Sent: Thursday, December 06, 2001 5:43 PM

> To: Jim Nelson; jim.dukelow@PNL.GOV; hflong@pacbell.net

> Cc: radsafe@list.vanderbilt.edu

> Subject: RE: Risks of low level radiation - New Scientist Article

> . . .

> Meanwhile, Colorado enjoys one of the lowest lung cancer rates in the

> nation. In 1995

> it was 49 the out of 51. Washington,DC, where radon concentrations are much

> lower, had the highest lung cancer rate in 1995 (Am. Cancer Society, 1996).

> 

> Of course, it is always possible to say that some yet-to-be discovered

> cross-level confounder could be causing the "apparent" disagreement with

> LNT, but it does seem unlikely.

> . . .

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