The correlation between the blood group A and coronary artery disease

Background: In recent years, lots of studies have been conducted in order to determine the correlation between the blood groups and the cardiovascular diseases. Most studies report a correlation between the blood group A and the Coronary Artery Disease. However, no similar studies have been conducted in Fars province; therefore, we decided to investigate the issue in this province. Methods: This cross-sectional study was performed on 2750 patients with coronary artery disease in Kowsar hospital (one of the biggest hospitals in Shiraz). Using the epidemiologic reports which show the distribution of the blood groups in Fars province, a statistical comparison (using chi-squared exam) was done in order to determine the role of the blood groups as well as the risk factors in coronary artery disease. Results: According to our results, we found that the rate of coronary artery disease in individuals with the blood group A was higher than the other blood groups. Regarding the risk factors, however, no significant difference was observed between the blood groups. Conclusion: A correlation was found between the blood group A and the incidence of coronary artery disease and there was no significant difference between the blood groups, considering the risk factors.