Relative Risk in logistic regression

Hi all,
I am very grateful to all those who write to me
1) how i  can  obtain relative risk (risk ratio) in logistic  
regression in R.
2) how to obtain  the predicted risk for a certain individual using
fitted regression model in R.

You obtain the predicted probabilities with something like:

predict(model, data.frame(x1="a", x2=30), type = "response")

See ?predict.glm

This would give the odds ratios (similar but larger than the risk  
ratios):

exp(coef(model))

David Winsemius, MD
Alameda, CA, USA