Fig. 1

Long-term outcomes according to severity of anemia in the presence or absence of RD on admission among HF patients. Kaplan–Meier, event-free curves free from all-cause death or rehospitalization (A and D), all-cause death (B and E), and rehospitalization due to worsening HF (C and F) in HF patients with and without RD (eGFR < 60 ml/min/1.73 m2) according to Hb levels on admission; normal Hb (Hb ≥ 13.0 g/dL in males, ≥ 12.0 g/dL in females), mild anemia (Hb ≥ 10.0 g/dL, < 13.0 g/dL in males, ≥ 10.0 g/dL, < 12.0 g/dL in females), moderate severe anemia (Hb < 10.0 g/dL).