One of the 2 principal measures (the other is prevalence) of how common a disease is in a defined population.
The incidence of a disease is the number of new cases that occur during a given period (for example, 17 new cases per 100,000 people per year).
Number of new cases of a disease or deaths within the specified period of time and population.
One of the main ways to measure the frequency of a disease in a particular population. The incidence of a disease is the number of new cases that occur during a particular time. PREVALENCE, the other measure, is the total number of cases of disease present at any one time and covers both old and new cases.
The number of cases of disease, infection or some other event having their onset during a prescribed period of time. It is often expressed as a rate (for example, the incidence of cardiovascular disease per 1000 population aged 65-74 years during a specified year). Incidence is a measure of morbidity or other events that occur within a specified period of time. See also “prevalence”.
A quotient, with the number of cases of a specified disease diagnosed or reported during a stated period of time as the numerator, and the number of persons in the population in which they occurred as the denominator.... incidence rate
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