among the older patients there were more female gender ( p less than 0.001 ) , severe angina ( canadian functional class iii or iv ) ( p less than 0.05 ) , unstable angina ( p less than 0.05 ) and multivessel disease ( p less than 0.05 ) in comparison with the younger group ( 495 patients ) .
C0002962
angina
C0002965
unstable angina