Article

Perioperative Mortality Prediction Using a Prevalence-Adaptive Four-Model Bayesian Ensemble with Entropy-Based Uncertainty Triage

2026-04-06

Abstract excerpt

<h4>Background</h4> Perioperative mortality prediction in resource-limited settings is challenged by severe class imbalance (16.9:1) and heterogeneous complication pathways. Existing tools such as P-POSSUM require intraoperative variables unavailable before surgery and provide no uncertainty quantification. We present a prevalence-adaptive four-model Bayesian ensemble with entropy-based three-tier triage, trained...

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Literature Corpus work: a55ee9b7-98f9-5a9b-89c3-068f9ae64311
DOI: 10.64898/2026.04.03.26350114

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