The frequencies of APOA1 -75 AA genotype (OR = 0.50, 95 % CI = 0.28, 0.88; P = 0.02) and APOA1 -75 A allele (OR =0.76, 95 % CI = 0.59, 0.98; P = 0.04) were significantly lower in CAD than in controls (Table 2). The gene discussed is APOA1; the disease is coronary artery disorder.