Table 2. Performance status assessed by the ECOG.

ECOG: Eastern Cooperative Oncology Group

Grade	ECOG performance status
0	Fully active, no restriction in the performance
1	Physical strenuous activity restricted; completely ambulatory and able to carry out light work of sedentary nature
2	Capable of self-care but unable to carry out any work activities; >50% of waking hours, ambulatory
3	Capable of limited self-care only; confined to bed or chair >50% of waking hours
4	Completely disabled; cannot carry out any self-care; wholly confined to bed or chair
5	Dead