Eastern Cooperative Group Performance Status ECOG Performance Status Developed by the Eastern Cooperative Oncology Group, Robert L. Comis, MD, Group Chair.* 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 self-care but unable to carry out any work activities; up and about m ore 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 *Oken M, Creech R, Tormey D, et al. Toxicity and response criteria of the Eastern Cooperative Oncology Group. Am J Clin Oncol.