The other common legal usage of vacate refers to the canceling or rescinding of court judgments and orders. State and federal rules of Civil Procedure give courts the authority to modify prior judgments.
Cancer prevalence is defined as the number of living people who have ever been diagnosed with cancer. It includes people diagnosed with cancer in the past as well those who were recently diagnosed. Cancer prevalence is determined by how often a cancer occurs (incidence) and by how long people normally live after diagnosis (survival). This means prevalence counts are highest for the most common cancers with the longest survival.
Nearly 17 million people in the United States have acne, making it the most common skin disease. (Source: excerpt from Questions and Answers About Acne: NIAMS) More Statistics about Acne: Hospitalization statistics; All statistics for Acne About prevalence and incidence statistics: The term 'prevalence' of Acne usually refers to the estimated population of people who are managing Acne at any given time. The term 'incidence' of Acne refers to the annual diagnosis rate, or the number of new cases of Acne diagnosed each year.