URL of this page: //medlineplus.gov/ency/article/002387.htm


Incidence is the number of new cases of a condition, symptom, death, or injury that develop during a specific time period, such as a year.

Incidence shows the likelihood that a person in a certain population will be affected by that condition.


Stedman's Online Medical Dictionary. www.stedmansonline.com/content.aspx?id=mlrI1400001043&termtype=t. Accessed April 21, 2015.

Review Date 4/11/2015

Updated by: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.