Dear all,
I recall a discussion on the list a while back regarding this topic, but I did find it in the archives.
In a case-control study the traditional way of modeling a logistic regression is:
logistic case died x1 x2 x3 x4
where case is the presence of cancer (0/1) for example.
Now, an investigator wants me to fit:
logistic died case x1 x2 x3 x4
and I am not sure that this is correct any longer. I recall that it is okay to “flip” the outcome and exposure variables if there are no additional covariates, however, with covariates (x1, x2 …) that is not okay anymore. Is that correct?
Thank you,
Ricardo
Ricardo Ovaldia, MS
Statistician
Oklahoma City, OK
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