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st: logistic reg with cluster option
I am currently doing logistic regression.
My independent variables are: Dr. Age, Dr. Race, Dr. Gender, Patient Age,
Patient Race, Patient Gender, length of visit, reason for visit, and
several other variables.
As you can see by running a model with these variables the doctor
variables will be repeated for each patient that doctor has. i.e the
patients are nested within the doctors.
I have ran the model with STATA using the cluster option and I cluster the
for ex: logit exercise drage drrace drgender ptage ptrace ptgender lov
what makes this statement different from the following
logit exercise drage drrace drgender ptage ptrace ptgender lov rfv, i(did)
pa robust ?
How also does this effect my interpretation of using the odds ratio for
Also, by specifying a cluster it clusters the doctors, but what about the
variables like reason for visit or any patient-related variables, how does
it affect them and their interpretation?
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