Incidence

The number of new cases in a given population

Incidence is defined as the number of new cases in a given population, moving forward in time. Incidence is generated using a prospective cohort design.

Relative risk with 95% confidence interval is used as a measure of association in prospective designs and is closely tied to comparing incidence between sub-groups and sub-populations

Incidence is a much more precise and accurate measure than prevalence. Selection and observation biases associated with retrospective designs lessen the precision and accuracy of measures of prevalence. Incidence uses a prospective method of observation to yield much stronger evidence.
Click on the Control Event Rate button to continue.
Incidence is defined as the number of new cases that exist in a given population, moving forward in time. Incidence is calculated using a prospective cohort design.