Performance Status Indicators

Performance status is frequently used to quantify cancer patients well being and often used to indicate whether or not a patient can tolerate chemotherapy. There are other uses - does reduction, use in trial and quality of life.

WHO / European Cooperative Oncology Group

Score Description
0
Asymptomatic (Fully active, able to carry on all predisease activities without restriction)
1
Symptomatic but completely ambulatory (Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature. For example, light housework, office work)
2
Symptomatic, <50% in bed during the day (Ambulatory and capable of all self care but unable to carry out any work activities. Up and about more than 50% of waking hours)
3
Symptomatic, >50% in bed, but not bedbound (Capable of only limited self-care, confined to bed or chair 50% or more of waking hours)
4
Bedbound (Completely disabled. Cannot carry on any self-care. Totally confined to bed or chair)
5
Death  

A score of zero denotes perfect health.

The original article can be found here.