(□) Log N-terminal pro-brain natriuretic peptide (coronary sinus–aortic root; NT-proBNPCS–AO) and (■) log NT-proBNPAO
vs. chronic kidney disease (CKD) stage. Crossbars, median; box, IQR. CKD stages: G1, estimated glomerular filtration rate (eGFR) ≥90 mL/min/1.73 m2; G2, 60≤eGFR<90 mL/min/1.73 m2; G3a, 45≤eGFR<60 mL/min/1.73 m2; G3b, 30≤eGFR<45 mL/min/1.73 m2; G4, 15≤eGFR<30 mL/min/1.73 m2; G5, eGFR <15 mL/min/1.73 m2. *1P<0.001 vs. G2, *2P<0.001 vs. G3a and G3b, *3P<0.001 vs. G4 with ANOVA regarding with log NT-proBNP in the AO.