Compared to N-terminal pro-B-type natriuretic peptide (NT-proBNP) and troponin T (troponin T), which are the classic predictive biomarkers for heart failure, cf-Hb in blood could be more sensitive in predicting heart damage in very early stages (OR, 1.31; 95% CI, 1.05–1.63; P = 0.02) [25]. The gene discussed is GSTM1; the disease is heart failure.