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When Does Incidence Occur?

Sophia Al-Mansoor • • 7 min read
When Does Incidence Occur?

Definition of incidence rate
Typically, each person is observed from an established starting time until one of four “end points” is reached: onset of disease, death, migration out of the study (“lost to follow-up”), or the end of the study.

How do you determine incidence?

How Do You Calculate Person-Time Incidence Rates? Person-time incidence rates, which are also known as incidence density rates, are determined by taking the total number of new cases of an event and dividing that by the sum of the person-time of the at-risk population.

What is an example of incidence?

Examples of incident cases or events include a person developing diabetes, becoming infected with HIV, starting to smoke, or being admitted to the hospital. In each of those situations, individuals transition from an occurrence-free state to an occurrence.

Sophia Al-Mansoor
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Sophia Al-Mansoor

Sophia analyzes international trade, startup ecosystems, retail transformation, and supply chain logistics for modern digital publications.