Unmeasured but Not Unbiased: The Missingness Demographic Leakage Audit (MDLA) for Calibration-Aware Fairness Evaluation in Critical Care Mortality Prediction
This paper introduces the Missingness Demographic Leakage Audit (MDLA), a reproducible framework that reveals how patterns of missing clinical data in critical care mortality models can act as subtle, unmeasured demographic proxies, necessitating the integration of missingness-aware auditing and calibration-aware evaluation into clinical AI validation pipelines.