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Re: Risks of low level radiation - New Scientist Article
From: "Dukelow, James S Jr" <jim.dukelow@PNL.GOV>
Jim,
If I'd read your note below first I wouldn't have been to respond. :-) Sorry
I'm running 'late.' Maybe I should review all on this topic first :-)
Regards, Jim
> Jim Nelson wrote:
> -----Original Message-----
> From: Jim Nelson [mailto:nelsonjima@HOTMAIL.COM]
> Sent: Thursday, December 06, 2001 11:15 AM
>
> Dr. Long,
>
> What is it about Cohen's work that you find so substantial? Do you relaize
> all his work is ecologic in nature? Even he says it can not be used to
> assess lung cancer risk. These studies below have far more validity than
> the ecologic studies you support.
>
> http://www.cheec.uiowa.edu/misc/rd_review.pdf
>
> http://www.cheec.uiowa.edu/misc/radon.html
>
> I understand a national pooling is also underway by Lubin and others that
> may shed more light. If you do in fact support Cohen's studies, your view
> is not shared by most epidemiologist I know.
>
> Jim
>
> ===============
>
> Jim Dukelow comments:
>
> The phrase "ecological study" has been used as a talisman -- a golden cross
> held aloft to fend off the vampire, as it were -- by those who argue that
> the linear no-threshold hypothesis actually has scientific content, as
> opposed to simply being a regulatory convenience.
>
> In fact, a trivial mathematical calculation demonstrates that Cohen's
> ecological data is completely adequate for the task he sets it, testing the
> linear no-threshold hypothesis on actual data. He finds, rather
> unequivocally, that the actual data is not consistent with the LNTH being
> valid.
>
> Epidemiology is a field in deep methodological doo-doo, to borrow George
> Bush pere's phrase. We could trade citations, if you like, although I will
> have to get my office unpacked first.
>
> I encourage you to look at Gary King's book, A Solution to the Ecological
> Inference Problem: Reconstructing Individual Behavior from Aggregate
> Behavior, Princeton University Press, 1997. You could also look at my
> review of King's book in the November 1998 issue of Health Physics.
>
> Best regards.
>
> Jim Dukelow
> Pacific Northwest National Laboratory
> Richland, WA
> jim.dukelow@pnl.gov
>
> These comments are mine and have not been reviewed and/or approved by my
> management or by the U.S. Department of Energy.
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