Re: Radon and Smoking (individual vs aggregate)

[BERNARD L COHEN <blc+@PITT.EDU>]

On Tue, 12 Feb 2002, Kai Kaletsch wrote:

>

> Hmmm, now I'm confused. I don't have the 1991 paper, but in HP Vol68, No2,

> pg 167, Cohen writes:

> "houses of smokers have 10% lower radon levels than houses of non-smokers,

> which is a direct radon-smoking correlation on the level of individuals (as

> opposed to a correlation on the level of counties)."

>

> So, is the correlation on an individual or an aggregate basis?



	--This correlation is on an idividual basis.





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