What is the difference between coronary artery disease and peripheral artery disease? If I have been diagnosed with one of these conditions, how likely is it that I have the other?

Coronary artery disease (CAD) refers to blockages in the blood vessels that supply blood to the heart. PAD usually refers to blockages in the blood vessels that supply blood to the legs. The two conditions often occur together. Patients with PAD face up to a 6-7 times higher risk of heart attack, blood clot and stroke.