* Program to compute a Relative Risk and a 95% CI;
Data Heart;
	Length Goup $ 9;
	Input Group $ Outcome $ Count;
Datalines;
Asprin HT 104 
Asprin No-HT 10933
Placebo HT 189
Placebo No-HT 10845
;
Proc Freq Data=Heart;
	Title 'Program to Compute the Relative Risk';
	Tables Group*Outcome / CMH;
	Weight Count;
Run;