BUN-albumin ratio as a prognostic marker in decompensated heart failure with reduced ejection fraction

Figures

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  Fig. 1. Flowchart of patient inclusion and exclusion. The diagram illustrates the process of identifying the final study cohort of 2286 patients with decompensated heart failure with reduced ejection fraction (D-HFrEF) from patients hospitalized during the study period.

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  Fig. 2. a: Unadjusted Receiver Operating Characteristic (ROC) Curve Analysis. ROC curves for the unadjusted association between the BUN-to-Albumin Ratio (BAR) and clinical outcomes. Panels display curves for predicting (from left to right): in-hospital mortality (AUC = 0.711), 30-day readmission (AUC = 0.554), and prolonged length of stay (LOS ≥ 30 days) (AUC = 0.647). AUC = Area Under the Curve. b: Fully Adjusted Receiver Operating Characteristic (ROC) Curve Analysis. ROC curves for the fully adjusted multivariable models predicting clinical outcomes. Panels display curves for predicting (from left to right): in-hospital mortality (AUC = 0.814), 30-day readmission (AUC = 0.565), and prolonged length of stay (LOS ≥ 30 days) (AUC = 0.671). The fully adjusted model includes BAR, age, gender, body mass index, tobacco usage, hypertension, hyperlipidemia, chronic kidney disease, and diabetes mellitus. AUC = Area Under the Curve.