Programming the statistical procedures from SAS

Odds Ratios do not match the exponentiated log odds...

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Odds Ratios do not match the exponentiated log odds...

Hopefully this is a silly question with an easy fix. However, my results from a binary logistic regression is providing me odds ratio estimates that do not equate to the exponentiated coefficient estimates. Does SAS calculate Odds Ratios in some other fashion? I have negative estimates, which I assumed would relate to an odds ratio under 1, but this is not always the case. That and the numbers just don't line up.

Thanks for any help,
Peter
SAS Employee
Posts: 241

Re: Odds Ratios do not match the exponentiated log odds...

See these usage notes:

http://support.sas.com/kb/23087
http://support.sas.com/kb/36478

The answers to many questions can be found in the Samples and SAS Notes in the searchable knowledgebase, http://support.sas.com/kb. You can use the search engine there to find the answers you need.
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