A CatBoost model integrating 22 granular nursing and emergency department features collected within the first 24 hours improved early in-hospital mortality prediction for acute ischemic stroke patients, achieving higher discrimination than established ICU scores in both internal and external validation.
Researchers developed and externally validated an interpretable machine learning framework to predict in-hospital mortality in acute ischemic stroke using high-granularity bedside data from the first 24 hours. Using 5,014 patients from three tertiary centers between 2019-2023, the best CatBoost model with 22 features achieved AUC-ROC 0.917 internally and 0.891 externally, outperforming traditional ICU scores.
- Impact 30%
- 63
- Evidence 25%
- 95
- Scale 20%
- 35
- Confidence 15%
- 87
- Recency 10%
- 91
Updated Aug 28, 2026 · TRV-2026-0919
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