Dear list,
I have structural data (GM VBM) from healthy controls as well as two
different patient groups. I also have 4 binary variables coding whether
genetic risk factors for the two diseases exist in each subject or not,
which I would like to treat as covariates.
What would be the best way to determine if and where the genetic
variables have the strongest impact in patients vs controls?
From reading the list postings I figured a multiple regression analysis
with group status and the genetic status as covariates would be
recommended. Is this true?
If yes and if my variables are <controlgroup> <patientgroup1>
<patientgroup2> <A> <B> <C> <D>, which contrast would determine the
influence of variable 'A' ?
Thank you very much for your help!
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