Linear regression models were performed to investigate the impact of MGUS on NT-proBNP and cTNT, and the results were given in Table S1, indicating that MGUS was statistically significant correlated with NT-proBNP (β = 0.152, P = 0.022) after eliminating the influence of other high-risk factors in CAD patients. The gene discussed is NPPB; the disease is coronary artery disorder.