Similarly, it presented independent prognostic value for HF hospitalization in multiple subsets (Figure 4), including the groups of age ≥ 75 and < 75 years, BMI < 18.5,18.5–23.9 and ≥ 28 kg/m2, NYHA class II– IV, comorbidity score 0–3 and ≥ 4, eGFR ≥ 60 mL/min/1.73 m2, and log NT-proBNP < 2.5 and ≥ 2.5. Here, NPPB is linked to hydrops fetalis.