Recalibration and External Validation of the Risk Analysis Index: A Surgical Frailty Assessment Tool
2019
Objective and Background:The Risk Analysis Index (RAI) predicts 30-, 180-, and 365-day mortality based on variables constitutive of frailty. Initially validated, in a single-center Veteran hospital, we sought to improve model performance by recalibrating the RAI in a large, veteran surgical registry
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