The distribution of Lipoprotein (a) levels among control subjects and patients with myocardial infarction (MI) across different age groups showed that in individuals under 40 years old, MI patients exhibit markedly higher median Lp(a) levels compared to controls, while the control group showed a higher median Lp(a) level than the MI patients in the 40–50 years age bracket, and in individuals over 50 years old, both groups had relatively low and comparable median Lp(a) levels. The gene discussed is LPA; the disease is myocardial infarction.