The multivariate logistic regression was applied to adjust for age, gender, BMI, glucose, HbA1c, ApoB, ApoA1, TC, TG, HDL-C, LDL-C, Lp(a), hs-CRP, and HCY; the level of sdLDL-C remained to be independently associated with the presence and severity of CHD (CHD group vs. non-CHD group: OR = 2.257, 95% CI: 1.792–5.064, p = 0.023; multiple-vessel disease group vs. single-vessel disease group: OR = 3.288, 95% CI: 1.866–7.285, p = 0.026; high GS group vs. low GS group: OR = 2.554, 95% CI: 2.044–5.399, p = 0.022). Here, APOB is linked to coronary artery disorder.