NPPB and hydrops fetalis: The ewECG model (AUC = 0.74, 95% CI 0.73–0.74) outperformed both NT-proBNP-21 pg/mL (AUC = 0.52, 95%CI 0.40–0.63) and ARIC HF (AUC = 0.61, 95%CI 0.50–0.73) in screening for DD.