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NCI Dictionary of Cancer Terms


overall survival rate  listen  (oh-ver-AWL ser-VY-vul rayt)

  The percentage of people in a study or treatment group who are still alive for a certain period of time after they were diagnosed with or started treatment for a disease, such as cancer. The overall survival rate is often stated as a five-year survival rate, which is the percentage of people in a study or treatment group who are alive five years after their diagnosis or the start of treatment. Also called survival rate.