RT Book, Section A1 Marras, Connie A1 Tanner, Caroline M. A2 Watts, Ray L. A2 Standaert, David G. A2 Obeso, Jose A. SR Print(0) ID 55792501 T1 Chapter 10. Epidemiology of Parkinson's Disease T2 Movement Disorders, 3e YR 2012 FD 2012 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-161312-5 LK neurology.mhmedical.com/content.aspx?aid=55792501 RD 2024/04/19 AB Epidemiologic investigation plays an important role in health planning, by providing estimates of disease frequency, including regional and temporal variations. In the 1950s, Kurland and his colleagues1 in Rochester, Minnesota, and Gudmundsson2 in Iceland provided the first community-based estimates of Parkinson's disease (PD) prevalence, finding it to be one of the most common neurodegenerative disorders of the elderly. This chapter reviews the worldwide incidence and prevalence of PD and provides the reader with tools for interpreting such studies.