The mean BNP and NT-proBNP levels in all the patients were 169.4 ± 278.6 pg/mL and 3,168.8 ± 8,844.8 pg/mL, respectively; excluding CKD stage 5D, they were 143.5 ± 241.5 pg/mL and 2,163.0 ± 5,985.4 pg/mL, respectively. Here, NPPB is linked to chronic kidney disease.