ECOG performance status
Pronunciation: EE-cog
Also written as: ECOG — Eastern Cooperative Oncology Group
Standardized scale measuring patient functional status and ability to perform daily activities, crucial for treatment planning.
Full Definition
The Eastern Cooperative Oncology Group (ECOG) performance status is a validated tool that quantifies a cancer patient's level of functioning in terms of their ability to care for themselves, daily activity, and physical ability. The scale ranges from 0 (fully active, able to carry on all pre-disease performance without restriction) to 5 (dead). ECOG performance status is a critical factor in determining treatment eligibility, particularly for intensive chemotherapy regimens and clinical trial enrollment. It serves as both a prognostic indicator and a standardized method for communicating patient functional capacity among healthcare providers.
Usage
Usage note: Always capitalize ECOG; use arabic numerals for scores (0-5)
In Context
- "Patients with ECOG performance status 0-2 were eligible for the intensive induction protocol." — Clinical trial inclusion criteria
- "The patient's ECOG performance status declined from 1 to 3 following disease progression." — Clinical assessment note