However, CAD patients, compared with control subjects, had higher rates of diabetes, higher levels of SBP and DBP (P < 0.01); higher levels of TG and LDL‐C (P < 0.03); higher levels of FBG, hs‐CRP, and IL‐1β (P < 0.01); higher rates of taking antihypertension drugs, antihyperglycaemic drugs, and hypolipidaemic drugs (P < 0.001); and lower level of IL‐11 (P = 0.005). This evidence concerns the gene IL11 and diabetes mellitus.