Five-year survival rate
Five-year survival rate is a term used in oncology to indicate the percentage of patients who live at least five years after their cancer is diagnosed. It is often used as a standard way of discussing a person's prognosis.
Overview[edit | edit source]
The five-year survival rate is a type of survival rate for estimating the prognosis of a particular disease, usually cancer. It is the percentage of patients who live at least five years after being diagnosed with the disease. For example, a five-year survival rate of 70% means that an estimated 70 out of 100 people who have the disease are alive five years after being diagnosed.
Calculation[edit | edit source]
The five-year survival rate is calculated from the time of diagnosis or start of treatment and includes all causes of death, not just the disease being studied. It does not mean that all patients will live for at least five years. Some may live much longer, while others may die sooner.
Factors affecting the five-year survival rate[edit | edit source]
The five-year survival rate can be influenced by many factors, including the type and stage of cancer, the patient's age and overall health, and the treatment received.
Limitations[edit | edit source]
While the five-year survival rate is a useful tool in estimating prognosis, it has its limitations. It does not take into account recent improvements in treatment, and it does not predict individual outcomes.
See also[edit | edit source]
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Contributors: Prab R. Tumpati, MD
