Next, MACCE and follow-up time were the dependent variables, while age, BMI, smoking, hypertension, dyslipidemia, SBP, DBP, FPG, HbA1c, insulin, TG, TC, HDL-C, LDL-C, sdIDL-C, ApoA-I, ApoB, Lp(a), hsCRP, neutrophils, Scr, UA, and NGAL were set as independent variables. The gene discussed is LCN2; the disease is metabolic syndrome.