ABO Blood Group System and the Association with Cardiovascular Risk Factors between Men and Women with Cardiovascular Diseases-A Comparative Study

Abstract

Objectives †The present study was designed to explore the relation between ABO blood group and cardiovascular risk factors in the patients attending tertiary care hospital in South India. Materials and Methods †One hundred nine patients, each male and female with different cardiovascular diseases, were included in the study and their ABO blood groups were analyzed with the cardiovascular risk factors. A detailed history was taken from all the patients regarding cardiovascular risk factors like high blood pressure, diabetes, and lipidemic. Total cholesterol, high density lipoprotein (HDL) cholesterol, low density lipoprotein (LDL) cholesterol, and serum triglycerides were determined for assessing lipidemia. Blood grouping was done using standard tube technique. Red cell and serum grouping was performed and results documented. Association between ABO blood groups and cardiovascular risk factors was done using chi-square test and Spearman's correlation. Results †The distribution of ABO blood groups shows that blood group O (41.28%) was more common in patients followed by group B (29.36%), group A (19.27%), and group AB (10.09%). One-hundred six cases (97.2%) were Rh D positive. A statistically significant difference was observed between gender and total cholesterol, LDL cholesterol and BMI with p value <0.05. In the study population, distribution of major cardiovascular risk factors, especially diabetes mellitus and dyslipidaemia, with ABO blood groups shows that there was no significant difference observed between blood groups and these cardiovascular risk factors. However, statistical significance was there between blood group O and hypertension (p = 0.03). Conclusion †There was no significant difference between the blood groups and the major cardiovascular risk factors were diabetes and lipids, but there was an association between blood group O and hypertension.