Ronnie D. Horner, PhD

In the United States, racial variations have been documented in the incidence, mortality, and clinical management of cancers of the breast, colon, lung, and prostate.[1-4] In conjunction with similar findings from nonmalignant diseases, such as cardiovascular and cerebrovascular disease, these data suggest that racial variations in medical care are widespread.[5-8] However, few empirical studies explain why these racial variations exist at all.