Clinical tool

ECOG and Karnofsky Performance Status

Definition of each grade and the approximate equivalence of the two scales

Updated: 27 October 20261 min read1 reference

Patient performance status on the ECOG and Karnofsky scales.

Patient's condition

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An aid for clinicians; it does not replace clinical judgement, local protocols or the drug label. Double-check every result before prescribing.

ECOG scale

ECOG performance status [1]
GradeDefinitionApproximate Karnofsky
0Fully active, no restriction90–100
1Restricted in strenuous activity, ambulatory and able to do light work70–80
2Ambulatory and capable of self-care but unable to work; up and about more than 50% of waking hours50–60
3Limited self-care; in bed or chair more than 50% of waking hours30–40
4Completely disabled; totally confined to bed or chair10–20
5Dead0

References

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Numbers in the text, such as [1], refer to these sources. Sources with a “Study card” button are summarised in the site’s evidence library.

  1. 1
    Toxicity and response criteria of the Eastern Cooperative Oncology GroupOken MM, Creech RH, Tormey DC, et al · Am J Clin Oncol · 1982;5:649-55

This page is based on reputable scientific sources and was last updated on 27 October 2026. The content of this website is for educational and informational purposes only and does not replace consultation, diagnosis or treatment by a specialist physician. Consult your treating physician about any treatment decision.