NPPB and hypertensive disorder: Compared with patients with serum potassium level <5.5 mEq/L, those with serum potassium level ≥5.5 mEq/L tended to be older (66.1 vs 76.4 years), have higher baseline office SBP/DBP (142.5/82.1 vs 151.3/84.0 mmHg), longer duration of hypertension (9.3 vs 13.3 years), lower proportion of patients using a RAS inhibitor/CCB as a basal antihypertensive (25.2% vs 7.4%), lower eGFRcreat (66.2 vs 58.7 mL/min/1.73 m2) and UACR (112.1 vs 67.5 mg/gCr), higher NT-proBNP level (102.0 vs 180.7 pg/mL), and lower plasma aldosterone concentration (51.0 vs 39.1 pg/mL), respectively.