R help - Oct 2015 - An R data set with both numerical and categorical variables and a two-class response (at least 15 variables)

Hi 

I need a data set containing both numerical and categorical variables and a
two-class outcome to be used in examples of my R package (for variable
selection). Do you know any well-known one? I prefer it to be related to
healthcare and to have at least about 15 variables.
?
Regards
Farideh Bagherzadeh Khiabani