|GRADE||ECOG PERFORMANCE STATUS|
|0||Fully active, able to carry on all pre-disease performance without restriction|
|1||Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature, e.g., light house work, office work|
|2||Ambulatory and capable of all selfcare but unable to carry out any work activities; up and about more than 50% of waking hours|
|3||Capable of only limited selfcare; confined to bed or chair more than 50% of waking hours|
|4||Completely disabled; cannot carry on any selfcare; totally confined to bed or chair|
Reference: Oken M, Creech R, Tormey D, et al. Toxicity and response criteria of the Eastern Cooperative Oncology Group.Am J Clin Oncol. 1982;5:649-655.