Dear FSL experts:
Could you please help me with 3 questions:
Study design: longitudinal study with baseline clinical assessment and DTI baseline + follow-up clinical assessment and DTI follow-up. 3 groups: disease A, disease B and C= control.
1)Some of my variables, such as disease duration and disease intensity are only applicable for the disease groups and not for the controls. How do I deal with this type of 'missing data' in the GLM?
2) Is there a way of using FA at baseline as an independent variable to predict MMSE at follow-up as a dependent variable?
3) If so, how do I deal with missing data, in the GLM, for those cases who did not undergo follow-up?
Regards,
Thais Minett
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