Performance status is a measure of how well you are functioning. It is measured using one of two scales. Your doctor will use one of these scales as a rough guide to whether you will be able to tolerate chemotherapy or whether you can be placed in a clinical trial.
Some doctors use a 1 to 100 scale, where 100 indicates that a person is functioning at his or her absolute best, with no limitations or other health problems.
Other doctors use a scale of 0 to 4 where:
When referring to clinical trials that use a new therapy or different doses of chemotherapy than normal, it is important to note the performance status of the participants in the study. If their performance status is 0 or 1, the information from that study may not be reasonable to apply to someone with a performance status of 2, 3, or 4.
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