wrong ruth

["John Williams" <JohnWi@law.com>]

Sorry Ruth, my response was to Ruth Sponslor.





You have to factor in good control of smoking duation, rate etc. 

Is the smoking rate in the uper midwest lower than the national 

average? 



I have a question for you.  As Dr. Field pointed out before, the 

counties around Three Mile Island have the highest regional radon 

concentrations in the United States.  Should I then infer that the 

radon emanates from the TMI plant?  Of course not.  As you pointed 

out before, it is very hard to show cause and effect with ecologic 

data. 







Was there anything in my post that suggested inferring that radon 

emanates from TMI? I cannot recall that there was, so please point it 

out to me.  I believe I mentioned controlling for environmental 

factors. 



Your point is?  It's not only "hard" to show cause and effect with 

ecological data, it's impossible.  Correlation is not causality. 



Sent by Law  Mail

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