Disease-free survival
Disease-free Survival
Disease-free survival (pronunciation: /diːˈziːz friː sərˈvaɪvəl/) is a term used in epidemiology and medical statistics to denote the period of time after primary treatment for a disease, such as cancer, during which no disease can be detected in the patient.
Etymology
The term "disease-free survival" is derived from the English words "disease", "free", and "survival". "Disease" comes from the Old French desaise, meaning lack of ease. "Free" comes from the Old English freo, meaning not in bondage. "Survival" comes from the Latin supervivere, meaning to live beyond.
Related Terms
- Overall Survival: This is the length of time from either the date of diagnosis or the start of treatment for a disease, such as cancer, that patients diagnosed with the disease are still alive.
- Progression-free Survival: This is the length of time during and after treatment of a disease, such as cancer, that a patient lives with the disease but it does not get worse.
- Relapse-free Survival: This is the length of time after the primary treatment ends that the patient remains free of cancer or other disease symptoms.
- Event-free Survival: This is the length of time after treatment during which a patient remains free of certain complications or events related to a particular disease, such as cancer.
- Recurrence: This refers to the return of a disease after its apparent cessation.
See Also
External links
- Medical encyclopedia article on Disease-free survival
- Wikipedia's article - Disease-free survival
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