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Peripheral arterial disease (PAD) is a disease in which blood flow to the legs is blocked. This may cause pain when walking or it may require amputation of part of the leg. Patients with PAD have higher risk of death. Health disparities exist in PAD: specifically, African Americans are more likely than Caucasians to develop PAD and when PAD is present, African-Americans are more likely to require leg amputation or experience other bad outcomes. Also, when African-Americans are diagnosed with PAD, they are less likely to be treated. Because of this, PAD can become a severe and disabling disease. A person's environment at home or work may make PAD worse. In this study, we will look for PAD in African-American adults that are at high risk for having the disease. We will also look for life conditions that may contribute to the presence of PAD. Finding these conditions is very important to change the course of this disease in under-served groups of people.