Re: Radon - county linear model and LNT

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

On Fri, 27 Jun 2003 epirad@mchsi.com wrote:



> Note that epidemiologists commonly use multivariate regression in

> their case-control studies, and this does assume linear dependences.



	--That is a weakness, which I point out when you incorrectly

accuse me of assuming linearity.



> In a case-control study you generally have information on the INDIVIDUAL, so

> you don't need the assumption.



	--You "adjust for" differences of various types, using

multivariate regression. In doing this, you assume linearity.



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