AOPEP and coronary artery disorder: The presence of LMW apo(a) phenotype (group 4) was associated with earlier CHD debut in comparison with group with HMW apo(a) phenotype (group 2) for patients with Lp(a) concentration more than 50 mg/dL (OR = 2.9; 95% CI 1.1–7.3, p = 0.026).