IL1A and coronary artery disorder: In addition, the previous meta-analysis by Chen et al in Chinese showed that IL-1 gene cluster polymorphisms did not seem to affect CHD risk, with ORs and 95%CI of 1.04 (0.93–1.18) for IL-1B-511 and 1.01 (0.78–1.17) for IL-1RN VNTR under multiplicative models [30].