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st: RE: Calculate z-values

From   "Steichen, Thomas" <>
To   <>
Subject   st: RE: Calculate z-values
Date   Tue, 25 Feb 2003 08:44:32 -0500


You can compute the z-values that -lincom- produces as:

    z = ln(OR)*OR/se

where OR and se are the values you posted to your file. 

The reported p-values are p = 2*(1-norm(abs(z))).


> -----Original Message-----
> From: Metrika Consulting [] 
> Sent: Tuesday, February 25, 2003 6:15 AM
> To:
> Subject: st: Calculate z-values
> Hello,
> Does anyone know how to calculate z-values from odds ratios 
> and standard errors of odds ratios?
> I have run a hugh amount of "logit..., robust or"  
> regressions followed by "lincom....., or", and I have posted 
> all the r(estimate) and r(se) to a new file. The new file 
> thus contains one variable with odds ratios and one variable 
> with the standard errors of odds ratios. How can I construct 
> a new variable with the z-values (or some approximation of 
> z-values)? I thought that "gen z = ln(odds ratio) / ln(se)" 
> would do it but it is obviously not the right way to do it.
> Best,
> Yvonne
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