Age, diabetes, peripheral and cerebrovascular history, LVEF, abnormal Q wave, the number of vessels with coronary artery disease, the number of implanted stents, brain natriuretic peptide, serum creatinine, estimated glomerular filtration rate, beta 2 microglobulin, and glucose were significantly different between the 2 groups (P<.001). Here, B2M is linked to coronary artery disorder.