Development and temporal validation of an auditable EHR-based risk-ranking pipeline integrating Chinese admission notes and laboratory data for cardiac intensive care: a retrospective cohort study
This retrospective cohort study developed and temporally validated an auditable EHR-based multimodal risk-ranking pipeline for cardiac intensive care that integrates Chinese admission notes with structured data, finding that while the model showed a numerically higher but statistically uncertain improvement in discrimination over structured data alone, its suboptimal calibration and modest incremental gain necessitate further external validation before clinical implementation.