MMRM: How to test that a marginal mean is different from zero
I have a simple mixed model for repeated measures with visit as the only
factor that analyzes change from baseline for serial measurements of an
outcome of interest controlling for the baseline value. My syntax looks like
MIXED Change BY Visit WITH Baseline
/FIXED=Visit Baseline Visit*Baseline | SSTYPE(3)
/REPEATED=Visit | SUBJECT(Subject) COVTYPE(UN)
/EMMEANS = TABLES(Visit).
Note that 'Change' at Visit 'x' is the value for the outcome of interest at
Visit 'x' minus the baseline value, i.e., the intra-individual change from
In the EMMEANS subcommand, how do I test that Change at Visit 'x' is
different from zero?
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