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ECOG Performance Status
Also written as: ECOG — Eastern Cooperative Oncology Group
A standardized scale measuring a cancer patient's functional ability and quality of life during treatment.
Full Definition
The Eastern Cooperative Oncology Group (ECOG) Performance Status is a widely used assessment tool that rates cancer patients' functional capacity on a scale from 0 to 5. Developed to standardize patient evaluation in clinical trials, it measures how the disease and treatment affect daily living activities. The scale ranges from 0 (fully active) to 5 (dead), with intermediate grades reflecting varying degrees of functional limitation.
Usage
Usage note: Always capitalize ECOG and specify the numerical score when documenting.
In Context
- "The patient's ECOG Performance Status of 2 indicated significant limitation in physically demanding activities." — Clinical assessment form
- "Enrollment criteria required an ECOG Performance Status of 0-1 for the chemotherapy trial." — Clinical trial protocol
Also known as
ECOG scale
Performance Status scale
Don't confuse with
Karnofsky Performance Status
ECOG grade