Epidemiology is a quantitative scientific discipline concerned with understanding the occurrence and determinants of states of health and disease in defined populations. The epidemiology practiced at the Mayo Clinic focuses on patient and other populations to test or generate hypotheses that translate to and from the basic and clinical sciences, with the ultimate goal of improving clinical care.

Researchers in the Division of Epidemiology study a variety of diseases across the themes, including osteoporosis, rheumatologic diseases, Parkinson's and other neurologic diseases, cancer (including melanoma, pancreatic and breast cancer), diabetes, urologic diseases, and behavioral disorders.

The research efforts within our Division are made possible primarily through grant funding from the National Institutes of Health, research foundations, and industry. The longest ongoing study in the Division is the Rochester Epidemiology Project (REP), which was established in 1966, and had provided the infrastructure for over 1500 publications to date. The unique resources established by the REP are critical for establishing reliable estimates of incidence and for carrying out large numbers of population-based descriptive and analytic studies of etiology and outcomes.