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The American Society of Anesthesiology's (ASA) 6-point physical status classification remains one of the most significant predictors of perioperative morbidity and mortality and is the most widely used risk stratification tool worldwide. Its utility is significantly limited for octogenarians, however, as the majority of these patients are classified as ASA-III. Thus, for patients aged 80 or older, we hypothesized that incorporating patients' functional status, defined by the ability to perform activities of daily living independently, would improve perioperative risk stratification.

Functional Capacity as a Significant Independent Predictor of Postoperative Mortality for Octogenarian ASA-III Patients