Prevalence is a medical statistic device, calculated from the number of individuals in a specific population at a specific time affected by a disease or any other incident, such as an accident or suicide. In contrast to the concept of incidence, which only records new cases during a given time frame, prevalence accumulates both new and previously diagnosed cases at a specific time. In most cases it is expressed as a number of cases per 100 000 inhabitants.
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Latest update on October 29, 2013 at 07:16 AM by Jeff.