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st: Repeated measures with covariates

From   May Lebanan <>
Subject   st: Repeated measures with covariates
Date   Sun, 26 Aug 2012 17:38:15 +0800

Hi, I am doing an analysis on a dependent variable called RExp
measured on several follow-up times (Ffupno) and would like to compare
among 4 groups (grp) and sex and would like to include a covariate
Hemoglobin.  Without the covariate my anova model looks like this:

anova RExp grp sex sex#grp / Respcode|grp#sex Ffupno Ffupno#grp
Ffupno#sex Ffupno#grp#sex, repeated(Ffupno)

Now I cannot find a reference on how to incorporate a covariate in this model.
What if I want to add several covariates, would that be possible and
what would the command look like?  Please help.

Thank you,
May Antonnette O. Lebanan
Researcher Biostatistician
Indicium Research Services
Manila, Philippines
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