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st: Statistical/Stata question


From   Jose Maria <jmpsouza@usp.br>
To   statalist@hsphsun2.harvard.edu
Subject   st: Statistical/Stata question
Date   Tue, 17 Feb 2004 22:26:05 -0300

Dear Statalisters:
I think it is more of a statistical question, but may I ask it:
If I have a categorical variable (letīs say with 4 categories) and run the logistic regression _logistic depvar category2 category3 category4_, I get the odds ratios relating each of the 2,3,4 categories against the category1 reference, with straigthway interpretation. What is the interpretation if I do _logistic depvar category3 category4_?
Sorry if it is a silly question.
Regards,
Jose Maria

--
Jose Maria Pacheco de Souza, Professor Titular
Departamento de Epidemiologia
Faculdade de Saude Publica/Universidade de Sao Paulo
Av. Dr. Arnaldo, 715 cep 01246-904
Sao Paulo Brasil
fones (11)3082-3886 (11)3714-2403 (11)3768-8612
fax (11)3082-2920 (11)3714-2403
www.fsp.usp.br/~jmpsouza
jmpsouza@usp.br




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