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Re: st: odds ratio vs. RRR in multinomial logistic regression


From   Richard Williams <Richard.A.Williams.5@ND.edu>
To   statalist@hsphsun2.harvard.edu, statalist@hsphsun2.harvard.edu
Subject   Re: st: odds ratio vs. RRR in multinomial logistic regression
Date   Thu, 02 Jun 2005 11:06:05 -0500

At 08:38 AM 6/2/2005 -0700, Michelle wrote:
I understand that mlogit allows you to type "RRR" to
get the relative risk ratio. My understanding is that
RRR is the ratio of probabilities, while odds ratio is
the ratio of odds.
Is this correct? If so, why can't I get an odds ratio
from mlogit?
Whatever you call it (and different programs call it different things) it is the exponentiated coefficient. Different programs call it the odds ratio, irr, rrr, exp(b). There was a discussion on stata list a little while back about what the best terminology was.

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