RE: Radon, smoking and LNT

[Dukelow, James, S, Jr]

Bernard Cohen and John Jacobus wrote:

-----Original Message-----

From: John Jacobus [mailto:crispy_bird@YAHOO.COM]

Sent: Tuesday, July 01, 2003 7:21 AM

To: BERNARD L COHEN; John Jacobus

Cc: BLHamrick@AOL.COM; radsafe@list.vanderbilt.edu

Subject: Re: Radon, smoking and LNT





Since no other method arrives at the same conclusion

you do, why is your conclusion correct?





--- BERNARD L COHEN <blc+@pitt.edu> wrote:

> 

> On Tue, 1 Jul 2003, John Jacobus wrote:

> 

> > I think that you say is true.  However, if you

> arrive

> > at a conclusion different from one arrived by

> other,

> > accepted methods, you have the added problem of

> > evaluating not only the results but the

> methodology.

> 

> 	--There is no "other method" that arrives at

> conclusions contrary

> to mine, that LNT fails badly in the low dose

> region.  What are you

> referring to here?

> 





=====

-- John

John Jacobus, MS

Certified Health Physicist

e-mail:  crispy_bird@yahoo.com



======================



Professor Cohen has written in the past that results of all of the case-control studies (or all of them but one) are consistent with the results of his analysis of his counties data.  Dr. Field has written that the case-control studies are consistent with the LNTH.



On the basis of my own review of the results of the case-control studies, both appear to be correct.  The reason for this paradox (?) is that the 95% confidence regions on the implied dose-response curves from the case-control studies are so wide that they include both the LNTH and the Cohen counties data.  Results of the case-control studies are actually all over the ballpark, particularly in the low-dose (i.e., less than 4 picocuries radon per liter) region.



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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