Eastern Cooperative Oncology Group Performance Status

The ECOG Scale of Performance Status is a crude way to measure a participant's level of functioning in terms of: their ability to care for themself, perform daily activities (walking, working, etc.), and their general physical ability. It is often used as part of clinical study eligibility in order to ensure participants are suitably healthy for a particular clinical study. It is rated from 0-5 in the following manner: 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 5 Dead * (Oken, M.M., Toxicity And Response Criteria Of The Eastern Cooperative Oncology Group. Am J Clin Oncol 5:649-655, 1982.)