Fig. 4.

Kaplan–Meier curves for subsequent acute decompensated heart failure (ADHF) in patients with inertia stress (IS) (a), left ventricular ejection fraction (LVEF) ≥58 % (b), and LVEF ≥50 % (c). ADHF-free survival rate was significantly higher in patients with IS than in patients without IS. It was also higher in patients with LVEF ≥58 % than in patients with LVEF <58 %. No significant difference in ADHF-free survival rate was observed between patients with LVEF ≥50 % and patients with LVEF <50 %