We conclude that the risk of myocardial infarction for men in the presence of the R2 allele of the His1299Arg polymorphism is neither increased nor decreased.
In 10 of 29 CAD patients (35%) with the factor V 1691 G-->A mutation and in 124 of 288 CAD patients without the mutation (43%) there was a history of myocardial infarction.