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RE: st: RE: Graphing limitations / questions


From   "Steichen, Thomas J." <SteichT@rjrt.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: Graphing limitations / questions
Date   Tue, 23 Nov 2004 13:16:12 -0500

b. water writes (in part):

> I checked metan's help file as well as the STB. The 
> command does not allow metan of odds ratios and their CI's 

True enough, but it does allow analysis of effect sizes (ES) and
their standard errors SE(ES).

For OR's with 95% CI = (LL, UL): 

   ES = log(OR)
   SE(ES) = (ln(UL) - ln(LL)) / 2 / 1.96

If your CI is other than a 95%, adjust the 1.96 appropriately.

Tom


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