Incidence and Prevalence
Measuring disease frequency happens in various means. The most commonly used measures in epidemiology are prevalence and incidence. Incidence refers to the occurrence of a new disease. Prevalence provides a measure for existing disease. The two measures are important providing measures for natural disease. Incidence focuses on the transition of disease from health to disease. Prevalence deals with the period that an individual lives with the disease.
Incidence refers to the occurrence of a new case of a disease that builds up in a candidate population over a specified time. Three ideas arise from this definition. Incidence measures new disease events. In cases of diseases ...