NPPB and heart failure: Other significant factors included NT-proBNP (Rank 3, Mean = 4.4, SD = 1.7, Correlation = −0.03) and highly sensitive C-reactive protein (hsCRP; Rank 5, Mean = 5.9, SD = 2.3, Correlation = 0.004), which are often used for biomarkers related to heart failure and inflammation, respectively.