Women are 12% more likely to die of a major heart attack at a hospital and less likely to survive than a man upon arriving at the hospital. They are more likely to die when leaving a hospital than a man.   Approximately 1% fewer women survive balloon angioplasty compared to men. Coronary Artery Bypass Graft (CABG) is twice as dangerous for women. In one study, researchers found that body mass made a difference in survival for women undergoing a CABG; the same body mass for a man didn’t similarly affect male survival. It seems likely that the difference in survival rates is linked to a man’s naturally larger arteries.