Fig. 2. Evidence-based medication prescriptions. (A) Prescription rate of angiotensin converting enzyme inhibitors: angiotensin receptor blockers: beta-blockers and aldosterone antagonists for acute heart failure patients. (B) Prescription rate changes in evidence-based medication before and after interim analysis. LVEF: left ventricular ejection fraction, ACEIs: angiotensin converting enzyme inhibitor, ARBs: angiotensin receptor blockers, BBs: beta-blockers, AAs: aldosterone antagonist.