Atherosclerotic arterial disease is the main cause of premature death worldwide and is anticipated to remain the single leading cause of morbidity and mortality the following two decades. Coronary heart disease (CHD) and peripheral arterial disease (PAD) are important clinical manifestation of atherosclerosis which have common underlying arterial pathology, risk factors, and preventive treatments, but they are not often studied concurrently. In the view of secondary prevention we need to know more about the prevalence of cardiovascular disease and prognosis in patients at documented high risk, i.e. patients with manifested CHD. Previous studies on patients with CHD and concomitant PAD have focused mainly on either lower extremity PAD or carotid artery disease. In this project we expand the concept of PAD in patients with CHD to include lower extremity arterial disease, carotid artery disease, renal artery disease, and abdominal aortic aneurysmal disease.