Comparison of ECOG/WHO Performance Status and ASA Score as a Measure of Functional Status

Abstract

CONTEXT: The Eastern Cooperative Oncology Group/World Health Organization Performance Status (ECOG/WHO PS) is a prognostic factor. It should be used in analyzing health outcomes such as risk-adjusted hospital performance models in cancer populations. Performance status is rarely recorded in surgery, often the place where cancer is first diagnosed. Could a universally collected preoperative measure be substituted for ECOG/WHO PS? OBJECTIVES: The aim of this study was to assess whether the American Society of Anesthesiologists (ASA) score could be used as a proxy for ECOG/WHO PS in risk adjustment models predicting extended length of stay (LOS) after cancer surgery. METHODS: Data were obtained..