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Re: st: RRR with CI from logit model


From   jmpsouza@usp.br
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RRR with CI from logit model
Date   Tue, 2 Nov 2004 13:37:40 -0300

Citando Ronán Conroy <rconroy@rcsi.ie>:

> jmpsouza@usp.br wrote:
> >Dear Statalisters:
> >let me enter late at this thread, to remind that -binreg- or -glm- f(bin)
> >link(log) many times fail to converge, in situations when logistic runs
> well.
> >Cheers,
> >Jose Maria
>  
> >
> Jose Maria and I have different experiences of -binreg-. This week I 
> have run a whole bunch of regressions that did, indeed, converge, and I 
> reckon that more than 80% of the models I've tried have converged.
> One strategy to getting -binreg- to run is to avoid adding all potential 
> confounders to the model. Use -logistic- to identify important 
> confounders and then run -binreg- on the resulting model.
               A very good idea.

 > Relative risks make so much more sense than odds ratios (at least to me 
> - I'm just a keyboard player) that I always try -binreg- in situations 
> where the data represent incidences.
               Just a remark: for case-control, relative risk does not apply.

Cheers,
Jose Maria 
Faculdade de Saude Publica/Universidade de Sao Paulo


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