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Re: NCRP bias?



Dr. Cohen - I looked at all the sources you mentioned but failed to see where you performed a multivariate analyses on potential co-linear factors.





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

From: BERNARD L COHEN <blc+@PITT.EDU>

Date: Tue, 06 May 2003 11:47:50 -0400 (EDT)

To: Carl Miller <radprot@mad.scientist.com>

Subject: Re: NCRP bias?



> 

> On Mon, 5 May 2003, Carl Miller wrote:

> >

> > Dr. Cohen may not think it is plausible to explain his findings just by his

>  use of guestimated county smoking rates(which are inversely related to the

>  radon), but what about the co-linearity between smoking, education and

>  socioeconomic factors? Dr. Field has pointed this out before.

> 

> 	--These problems are covered in several of my papers. But be more

> specific if you want a clearer reply. You might try reading my

> published responses to Dr. Field. Better yet, look at Item #7 on my web

> site.

> 

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