Why is a one unit change in x an interesting range for the purpose of
estimating an odds ratio?
The default in summary() is the inter-quartile-range odds ratio as clearly
stated in the rms documentation.
Frank
array chip wrote:
>
> Hi, I am trying to run a simple logistic regression using lrm()
Hi, I am trying to run a simple logistic regression using lrm() to calculate a
odds ratio. I found a confusing output when I use summary() on the fit object
which gave some OR that is totally different from simply taking
exp(coefficient), see below:
> dat<-read.table("dat.txt",sep='\t',header=T
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