CETP and coronary artery disorder: According to the sample size of the control, the CETP rs180075 polymorphism was associated with an increased risk of CAD under the allele model (OR = 1.247, 95% CI = 1.022–1.521, P = 0.03) and the dominant model (OR=1.35, 95% CI = 1.025–1.777, P = 0.032) in studies using small samples (size < 500).