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st: AW: difference in odds ratio

From   "Martin Weiss" <>
To   <>
Subject   st: AW: difference in odds ratio
Date   Tue, 2 Mar 2010 11:42:13 +0100


h suest


-----Ursprüngliche Nachricht-----
[] Im Auftrag von Shehzad Ali
Gesendet: Dienstag, 2. März 2010 11:32
An: Stata List
Betreff: st: difference in odds ratio

Hi listers,

I have run two separate logistic regression models for two age groups
(dependent and independent variables are the same in the two regressions). I
want to find out whether the odds ratios for the two groups are
statistically significantly different from each other, i.e. I am interested
in OR(A) - OR(B) and the confidence interval around the difference.

Could anyone suggest the best way to get the confidence interval and p-value
of the difference in odds ratios?

Many thanks,

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