Influencing factors of 90-day readmission of patients with heart failure based on the MIMIC-IV database

Highlight box

Key findings

• Charlson Comorbidity Index (CCI), red blood cell count (RBC), red cell distribution width (RDW), and age were the main factors influencing the 90-day readmission of patients with heart failure (HF). RBC and RDW were linearly correlated with the 90-day readmission of patients with HF, while CCI and age were nonlinearly correlated with the 90-day readmission of patients with HF.

What is known, and what is new?

• It is known that CCI, RBC, RDW, and age were the factors influencing the prognosis of patients with HF.

• This study revealed that RBC and RDW were linearly correlated with the 90-day readmission of patients with HF, while CCI and age were nonlinearly correlated with the 90-day readmission of patients with HF.

What is the implication, and what should change now?

• For patients with HF, clinicians should pay attention to patients’ CCI, RBC, RDW, and age.

Publication: Shen X, Yang J, Zhang X. Influencing factors of 90-day readmission of patients with heart failure based on the MIMIC-IV database. J Thorac Dis 2025;17(3):1207-1216. doi: 10.21037/jtd-24-1738