What is Performance Status for Cancer

ECOG, Karnofsky, Lansky, Zubrod, and WHO PS

Performance status (PS) is a simple measure of a person’s health performance and well being based on guidelines generally followed by physicians. The doctor records a number to indicate how capable a person is of performing activities of daily living.

This number is recorded as a way to quantify how a person feels and how active a person is. PS is used in clinical oncology research as one way of measuring how effective a treatment is and assessing how the patients’ disease is progressing.

PS scales have been published in a variety of ways such as Zubrod, Karnofsky, ECOG, WHO, and Lansky. Comparison of these scales is relatively similar.

Use the comparison table criteria below to help you determine a performance status.

Comparison Table

ECOG / WHO / Zubrod
Karnofsky
Activity
Zubrod 0
Karnofsky 90-100
Normally Active
Zubrod 1
Karnofsky 70-80
Symptoms but ambulatory where strenuous physical activity is restricted
Zubrod 2
Karnofsky 50-60
In bed less than 50 percent of the time. Capable of all self-care
Zubrod 3
Karnofsky 30-40
In bed more than 50 percent of the time. Capable of only limited self-care.
Zubrod 4
Karnofsky 10-20
Completely disabled and bedridden.
Death
 
 

References

*Oken MM, Creech RH, Tormey DC, et al (1982). "Toxicity and response criteria of the Eastern Cooperative Oncology Group". Am. J. Clin. Oncol. 5 (6): 649–55

Consult your health care professional if you have any questions.

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Comments 2 comments

Jlbowden profile image

Jlbowden 5 years ago from Long Island, New York

Hello Roseann:

Very informative article about PS for cancer. I found this to be interesting as well and did not know that there was a table that physician's follow to rate someones performance, from an oncological perspective. Again good information, which I can relate to working within the pharmaceutical industry. Good luck with all of your writing here on hubpages and thanks for sharing this article.

Jl


Roseann Cole profile image

Roseann Cole 5 years ago from Midwest USA Author

Thanks JLbowden. Many people have never heard of performance status before, but it is an important tool that many doctors use world-wide.

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