The ECOG Performance Status typically uses a scale from 0 to 5, where:
0: Fully active, able to carry on all pre-disease activities without restriction. 1: Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature. 2: 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: Capable of only limited self-care; confined to bed or chair more than 50% of waking hours. 4: Completely disabled; cannot carry on any self-care; totally confined to bed or chair. 5: Dead.
