Considering the results of a meta-analysis of the relationship between the Lp(a) level and development of CHD did not show significant differences in the relative risk in studies using methods sensitive and insensitive to the size of apo(a) isoforms (32) and high variability in the Lp(a) measurement, regardless of isoforms (33, 34), allows us to assume that sensitivity of ELISA to apo(a) isoforms did not affect the results of our study. The gene discussed is LPA; the disease is coronary artery disorder.