GSTM1 and coronary artery disorder: Univariate analysis of blood parameters in elderly patients with CHD showed that RBC (P = 0.008), albumin (P < 0.001), total cholesterol (P = 0.029), triglyceride (P = 0.030), HDL-C (P = 0.022), LDL-C (P = 0.030), Hb (P = 0.001), RDW (P < 0.001), and HRR (P < 0.001) were associated with frailty (Table 3).