In the univariate analysis, as shown in Table 2, CEC was positively correlated with the levels of total plasma apolipoprotein A-I (r = 0.369, p = 0.004), HDL-phospholipids (r = 0.338, p = 0.009), HDL-free cholesterol (r = 0.282, p = 0.032), HDL-apoA-I (r = 0.400, p = 0.002), and HDL-apoA-II (r = 0.340, p = 0.009) in the non-CAD group. The gene discussed is APOA1; the disease is coronary artery disorder.