The document summarizes a study that investigated the association between genetic variants on chromosome 1p13.3 and serum LDL-cholesterol levels and risk of coronary artery disease among patients in Qatar. The study genotyped three SNPs, rs599839, rs646776, and rs4970834, in subjects with single or multiple coronary lesions. The results found no statistically significant association between the variants and LDL-cholesterol levels or cardiovascular disease risks.