Figure 3. Kaplan-Meier Survival Curves by GDMT Group. Patients were stratified into three groups according to the GDMT initiation time (0 ≤ T ≤ 1 day, 1 day < T ≤ 4 days, and T > 4 days), and the corresponding one-year survival curves were depicted. GDMT: Guideline-directed medical therapy.