Coronary heart disease (CHD) is the most common form of heart disease, affecting approximately 13.2 million Americans.

Coronary heart disease is the single greatest cause of death for both men and women in the United States. Every year more than 479,000 Americans die of CHD.

Each year there are more than 1.2 million heart attacks in the United States. Of these 340,000 are sudden, causing the patient to die at home or in an emergency room .