Re: Radon-Stirring the Pot

[epirad@mchsi.com]

Ruth,



When I say "directly examine", I mean the lung cancer 

risk estimates for redidential radon exposure were not 

extrapolated from miners, but rather examined directly 

by studying subjects who live in homes.



Obviously we have individual exposures for each 

individual. However, we are not going to publish 

findings that were not part of the Specific Aims of the 

funded research.  The objective of the study was to 

examine whether or not residential radon exposure 

contributed to lung cancer risk for women who developed 

lung cancer in Iowa.  



The N. American Pooling of residential radon studies has 

sufficient sample size to look at the risk for non 

smokers.  The findings of this study have been reported 

at both the American Statistical Association Meeting and 

The International Indoor Air Meetings.  The final paper 

has been submitted for publication.



If you want to talk further about this, please email me 

directly at bill-field@uiowa.edu.  



Bill Field





> In a message dated 9/19/2002 7:53:11 PM Mountain Daylight Time, 

> epirad@mchsi.com writes:

> 

> << Nonetheless, the residential radon studies do not have 

>  to rely on any LNT extrapolations since they directly 

>  examine the risk >>

> Bill, I don't know what you mean by "directly examine."  Risk estimates are 

> extrapolations anyway.  The Iowa study does not provide a list of individual 

> exposures, which is what I would have thought was meant by "directly 

> examine".  I really believe that to make your point you dshould publish the 

> radon exposures of the non-smoikers in your cancer cohort, after correcting 

> for secondary smoke.

> 

> Moreover, your assessment of radon exposure was hardly "direct."  The paper 

> makes a lot of assumptions about times people spent at various rdon exposures.

> 

> Ruth.

> 

> RuthF. Weiner, Ph. D.

> ruthweiner@aol.com

************************************************************************

You are currently subscribed to the Radsafe mailing list. To unsubscribe,

send an e-mail to Majordomo@list.vanderbilt.edu  Put the text "unsubscribe

radsafe" (no quote marks) in the body of the e-mail, with no subject line.

You can view the Radsafe archives at http://www.vanderbilt.edu/radsafe/