Urban/rural effects

[FIELDRW@aol.com]

In a message dated 3/9/00 9:09:14 AM Central Standard Time, blc+@pitt.edu 
writes:

<< > Field Response:  My question regarded why you felt you found such a 
strong 
 > inverse association between mean county radon concentrations and your 
 > estimated county smoking rates.  I do not think this can be explained 
merely 
 > by an urban/rural phenomenon. 
 
Dr. Cohen response  --I think it can be explained by the urban-rural effect, 
but the
 explanation is irrelevant to the issue under discussion, which is finding
 an explanation for the large discrepancy between predictions of LNT and
 our data. >>

Field response: It is not irrelevant.  It addresses the quality of your data. 
 If it is due to urban/rural factors, you should be able to explain the 
inverse association between mean county smoking rates and mean county radon 
concentrations in definitive analytical terms.  

Bill Field
Bill-field@uiowa
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