Table of ContentsView AllTable of ContentsWhat It RevealsScalesTreatmentQuality of LifePrognosisClinical TrialsFrequently Asked Questions
Table of ContentsView All
View All
Table of Contents
What It Reveals
Scales
Treatment
Quality of Life
Prognosis
Clinical Trials
Frequently Asked Questions
Performance status measures how well a person can carry on ordinary daily activities while living with cancer. It also provides an estimate of what treatments a person may tolerate.
There are two performance scales: the Eastern Cooperative Oncology Group (ECOG)/WHO system and the Karnofsky Performance Status (KPS) scale. Each ranks your functioning and ability to care for yourself.
Performance status is often mentioned in the setting of clinical trials, where researchers use them as a way to ensure results are reproducible in people with similar health conditions. But it is essential in the overall care and management of anyone living with cancer because it can help quantify a treatment’s effect on your quality of life.
This article explains ECOG performance status and KPS performance status, as well as how to interpret scores.
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What Performance Status Reveals
ECOG performance status or KPS determine how well you are doing with youractivities of daily living, or ADLs.This says a lot about the current state of your disease and what treatments may be viable options for you.
A healthcare provider may reference performance status:
This is why your oncologist or a clinical trial investigator asks all of those questions about your daily life.
Performance Status Scales
Two primary performance scales are used to measure performance status for those living with cancer: the Eastern Cooperative Oncology Group (ECOG)/WHO system,and the KPS.
ECOG performance status ranks performance status on a scale of 0 to 5. KPS uses a scale of 0 to 100. Note that these scales differ in whether a lower number or a higher number means better performance status. With the ECOG/WHO performance status, the ideal score zero, whereas with the KPS the ideal number is 100.
ECOG/WHO Performance Status
Karnofsky Performance Status
How Performance Status Impacts Treatment
Many of the treatments for cancer, whether surgery, chemotherapy, radiation therapy, targeted therapies, clinical trials, or stem cell transplants, can be challenging enough for those who are very healthy at the time of diagnosis.
Therefore, ECOG performance status and KPS can help people with cancer and their healthcare providers weigh the potential benefits and risks of different options.
This is even more important now that there are many more treatment choices than in the past. For example, people with lung cancer who have a poor performance status are more likely to experience adverse effects and have a poorer overall survival if they receive standard chemotherapy.
Performance Status and Quality of Life Issues
When talking about cancer treatment, quality of life issues can sometimes be pushed to the back burner. By routinely measuring quality of life with ECOG performance status and KPS, and noting changes, oncologists can be more aware of problems that are reducing quality of life and recommend appropriate resources.
This may include options such as physical therapy, occupational therapy, and cancer rehabilitation (such as theSTAR program), equipment ranging from oxygen to a walker or wheelchair, as well as the need for in-home health services or a referral for transitional or hospice care.
Predicting Prognosis
Many people with cancer and their families ask about prognosis. While it may seem morbid to ask about life expectancy, having an idea of prognosis (while knowing that healthcare providers including oncologists do not have a crystal ball and that everyone is different) allows people to consider advance care planning and end of life issues, and can also help people have a better idea when hospice may be an appropriate choice.
Use in Clinical Trials
Many clinical trials require patients to have a good performance status before trying an experimental treatment.
There are a few reasons researchers use the criteria of performance status to determine eligibility for entering a clinical trial.
One is so that their results are “reproducible.” In other words, if another researcher were to do a similar trial, it’s important to start with people in the same general health condition.
Another reason, however, is important for you personally. By recording performance status, healthcare providers are able to monitor the new treatments to see if they have a negative effect on performance status.
For example, if people responded to a drug but started with a performance status of 0, which dropped to 2, healthcare providers would then need to consider whether or not the side effects of the treatment justified the positive results they found in treating the cancer.
Frequently Asked QuestionsOnly a few moments. A physician typically completes an ECOG performance status test during a routine evaluation. Doctors look at some readily observable criteria, such as your levels of activity, self-care, and assistance required.The Palliative Performance Scale (PPS) is a modified KPS. It measures function and predicts survival among those receiving palliative care (intended to increase comfort during treatment).Learn MoreWhat Is Palliative Care?
Only a few moments. A physician typically completes an ECOG performance status test during a routine evaluation. Doctors look at some readily observable criteria, such as your levels of activity, self-care, and assistance required.
The Palliative Performance Scale (PPS) is a modified KPS. It measures function and predicts survival among those receiving palliative care (intended to increase comfort during treatment).Learn MoreWhat Is Palliative Care?
The Palliative Performance Scale (PPS) is a modified KPS. It measures function and predicts survival among those receiving palliative care (intended to increase comfort during treatment).
Learn MoreWhat Is Palliative Care?
10 Sources
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