IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-8-1-17617 Original Research Paper A STUDY TO ASSESS THE ABO BLOOD GROUP ANTIGEN PHENOTYPE AND GENE DISTRIBUTION AMONG BLOOD DONORS AT A TERTIARY CARE RESEARCH INSTITUTE IN SOUTH INDIA Chaitanya Kumar Dr. R Arun Dr. TVN Sriranjitha Dr. January 2019 8 1 01 02 ABSTRACT

 ABO blood group antigens form the basis of current blood transfusion practice and their prevalence among blood donors can provide a glimpse into the population distribution of ABO genes and hence this study was undertaken to assess the ABO antigen phenotype prevalence and ABO gene prevalence among blood donors at a tertiary care teaching research Institute in South India. A total of 49,279 donors have been checked for their ABO blood group. The O, A, B, AB blood group prevalence were 42, 20, 32, 6 percent respectively while the O, A, B gene frequencies were 65, 14, 21 percent respectively.