fixed class effect terms for treatment

English translation: fixed-effect class variables

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:fixed class effect terms for treatment
Selected answer:fixed-effect class variables
Entered by: V&E-Team

18:40 Sep 9, 2017
English language (monolingual) [PRO]
Medical - Mathematics & Statistics / clinical trial/statistical method
English term or phrase: fixed class effect terms for treatment
Hello,
Could you please help me analise/parse this EN phrase:
-fixed class effect terms for treatment
I mean, describe it in other EN words or express yourself differently.

Context: Clinical trial/statistical method

The primary efficacy analysis will be performed by fitting a mixed-effect model repeated measure (MMRM) analysis with an unstructured variance covariance structure in which the change from the baseline in YMRS Total Score during the double-blind treatment phase will be the dependent variable based on the observed cases data set.
The model will include fixed class effect terms for treatment, trial site, visit week, and an interaction term of treatment by visit week.

Thank you!
V&E-Team
Croatia
Local time: 12:52
fixed-effect class variables
Explanation:
It looks like 'treatment', 'trial site', 'visit week', etc. are the input terms for the class variables.

'For Proc Mixed we need to specify that group, time, and subject are class variables. (See the syntax above.) This will cause SAS to treat them as factors (nominal or ordinal variables) instead of as continuous variables.' http://www.uvm.edu/~dhowell/StatPages/More_Stuff/Mixed-Model...

'A fixed-effect class variable for study year was included as a covariate in the health model' http://europepmc.org/articles/PMC4104685

'Si was a fixed effect class variable for study (experiment), Tj was a fixed effect class variable for treatment, Bik was a random class variable for study site (block)' https://academic.oup.com/forestry/article/82/5/583/617194/Ev...

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Note added at 22 hrs (2017-09-10 16:45:20 GMT)
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Edit: 'Treatment', 'trial site' and 'visit week' correspond to fixed-effect class variables. 'Treatment by visit week' corresponds to an interaction term.
Selected response from:

Herbmione Granger
Germany
Local time: 12:52
Grading comment
thank you
4 KudoZ points were awarded for this answer



SUMMARY OF ALL EXPLANATIONS PROVIDED
3fixed-effect class variables
Herbmione Granger


Discussion entries: 7





  

Answers


21 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5
fixed-effect class variables


Explanation:
It looks like 'treatment', 'trial site', 'visit week', etc. are the input terms for the class variables.

'For Proc Mixed we need to specify that group, time, and subject are class variables. (See the syntax above.) This will cause SAS to treat them as factors (nominal or ordinal variables) instead of as continuous variables.' http://www.uvm.edu/~dhowell/StatPages/More_Stuff/Mixed-Model...

'A fixed-effect class variable for study year was included as a covariate in the health model' http://europepmc.org/articles/PMC4104685

'Si was a fixed effect class variable for study (experiment), Tj was a fixed effect class variable for treatment, Bik was a random class variable for study site (block)' https://academic.oup.com/forestry/article/82/5/583/617194/Ev...

--------------------------------------------------
Note added at 22 hrs (2017-09-10 16:45:20 GMT)
--------------------------------------------------

Edit: 'Treatment', 'trial site' and 'visit week' correspond to fixed-effect class variables. 'Treatment by visit week' corresponds to an interaction term.

Herbmione Granger
Germany
Local time: 12:52
Native speaker of: Native in EnglishEnglish
PRO pts in category: 4
Grading comment
thank you
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