Dear Experts: I am very new to freesurfer glmfit and this post may seem dumb. I want to find the correlation between Cth and Education for each of HC and RRMS group regressing out the effect of gender and (demeaned) age. My fsgd file is something like below.
GroupDescriptorFile 1 Title Group-Edu-Correlation MeasurementName thickness Class FemaleHC Class FemaleRRMS Class MaleHC Class MaleRRMS Variables Age Education Input 1 FemaleRRMS -7.97 0.243 Input 2 MaleRRMS -2.97 -1.300 Input 3 FemaleHC -12.97 -0.914 Input 5 Male HC 4.03 -1.686 ………………….. I used DODS method. For HC, I set the correlation matrix as: 0 0 0 0 0 0 0 0 0.5 0 0.5 0 And for RRMS, I set the matrix as: 0 0 0 0 0 0 0 0 0 0.5 0 0.5 1. Are my DODS contrasts correct? 2. To get better DOF, should I create two different FSGD file for each group (i.e. one for HC and one for RRMS)? 3. If I create two different FSGD file for each group then can I use DOSS method and use the contrast: 0 0 0 1 ? Thanks, Anwar This e-mail is intended only for the named recipient(s) and may contain confidential, personal and/or health information (information which may be subject to legal restrictions on use, retention and/or disclosure). No waiver of confidence is intended by virtue of communication via the internet. Any review or distribution by anyone other than the person(s) for whom it was originally intended is strictly prohibited. If you have received this e-mail in error, please contact the sender and destroy all copies.
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