In current use, incidence usually means "rate of occurrence" and is often qualified in some way ("a high incidence of bear sightings"). Incident usually refers to a particular event, often …

Incidence should not be confused with prevalence, which is the proportion of cases in the population at a given time rather than rate of occurrence of new cases.

Incidence definition: the rate or range of occurrence or influence of something, especially of something unwanted.. See examples of INCIDENCE used in a sentence.

Definition of incidence noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

INCIDENCE meaning: 1. the rate at which something, especially a disease, happens: 2. the fact of a ray of light…. Learn more.

Aug 12, 2022 · Measuring incidence may be complicated because the population at risk for the disease may change during the period of interest due to births, deaths, or migration, for example.

Apr 1, 2025 · 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.

The incidence of something bad, such as a disease, is the frequency with which it occurs, or the occasions when it occurs.

Offering a helpful definition of incidence in epidemiology, the National Center for Health Statistics (NCHS) describes this as the "number of cases of disease having their onset during a …

incidence, in epidemiology, occurrence of new cases of disease, injury, or other medical conditions over a specified time period, typically calculated as a rate or proportion.