Incidence Rate

The proportion of a population that has a particular condition that began during a given time period the rate covers. It measured on of three ways: attack rate, incidence density rate, or cumulative incidence risk.

The proportion of a population that has a particular condition that began during any given time period the rate covers. It is measured one of three ways: attack rate, incidence density rate, or cumulative incidence risk.

The ratio of the number of new cancers of a specific site/type occurring in a specified population during a year to the number of individuals who were at risk for the given cancer, generally expressed as the number of cancers per 100,000 persons.

The number of new cases of a disease or condition that occur in a defined population during a specified time period, often expressed per 100,000 persons. AIDS incidence rates are often expressed this way.