Oncology

ECOG Performance Status

Functional status in oncology.

Education and reference only. Not a substitute for clinical judgement, local policy or product labelling. Always verify before clinical use. Values are calculated in your browser and never stored.

When to use

Use to describe a patient's functional status, e.g. to assess fitness for cancer treatment and as a prognostic marker.

Why use

It is a standard, widely-used measure of performance status.

Evidence & references

Oken MM et al. Toxicity and response criteria of the ECOG. Am J Clin Oncol. 1982.

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