The chi-square test, multivariable logistic regression analysis with adjustment for covariates, as well as a stepwise forward selection procedure revealed that three different polymorphisms were significantly (P<0.005) associated with the prevalence of MI in individuals with or without hypertension or diabetes mellitus: the C --> T polymorphism of CLEC16A (rs9925481) in individuals without hypertension, the A --> G polymorphism of SEMA3F (rs12632110) in individuals without diabetes mellitus and the A --> G polymorphism of ALOX5 (rs7913948) in individuals without hypertension or diabetes mellitus.