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st: RRR with CI from logit model


From   Michael Ingre <Michael.Ingre@ipm.ki.se>
To   statalist@hsphsun2.harvard.edu
Subject   st: RRR with CI from logit model
Date   Mon, 1 Nov 2004 10:32:58 +0100

Dear list

I have estimated a logit model and would like to present Relative Risk Ratios (RRR) comparing the risk at different levels of a scale used as a covariate in the model. Odds Ratios are easily calculated with -lincom-. RRRs are also easily calculated by just taking the ratio between predicted probabilities for different levels of the scale. It is also quite straight forward to calculate a confidence interval of the predicted probabilities. But how do I calculate Confidence Intervals of the risk ratios?

Thanks

Michael


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