These samples were collected from a) Voluntary blood bank, Sardar Smarak Hospital, Bardoli, b) Loksamarpan Raktadan Kendra, Varachha Road, Surat, and c) Blood Bank, New Civil Hospital, Surat. Total 4 ml of blood sample was collected in EDTA tubes from “O” blood group regular and repeat voluntary donors after taking their consent for using their blood samples in the present study. The present study is the first report on the incidence of other blood groups in blood donors of south Gujarat. No study till date has reported the incidence of red cell phenotypes of other blood groups in south Gujarat. Very few studies are available from India reporting antigen frequencies of other blood group systems. The current study was performed with a futuristic aim to formulate in-house screening and identification of red cells and to have an estimate of phenotypes of major blood group systems prevalent in the blood donors of south Gujarat in India.

Knowledge of phenotype frequencies of major blood group systems help in formulating in-house red cells for antibody detection and identification.īecause India is a vast country with several distinct population groups, there is an obvious need for phenotype frequencies to be determined in different parts of India. Successful antibody detection and identification in patient's serum depends on the use of appropriate and comprehensive screening and panel red cells. The criteria for selection of donor cells focuses on absence of antigens on donor cells for the antibodies that are detected in the patient's serum needing transfusion during antibody detection and identification. To achieve this goal, donor red cells that are compatible with those of the patient's blood are selected for transfusion. In fact, there are millions of ways we can categorize our blood types - we just haven't defined all of them yet.The primary goal of any blood transfusion is to provide the patient with donor red blood cells that optimally survive after transfusion and serve their function and to ensure that the patient actually benefits from the transfusion.

It should be noted that while the ABO and the Rh+ and Rh- blood type group systems are the ones we are most familiar with, there are way more ways to classify our blood types. Blood type B makes up only 10% of the population, while blood type AB is the rarest at 4%. Using data from Wikipedia and the Standford Blood Center, Reddit user foiltape put together this pie chart that shows the most common and least common blood types in the US:Īnd here's a more precise percentage breakdown from most common to least common blood types in the US:Īnd if you disregard the Rh+ and Rh- blood type classification system, and just look at O, A, B and AB blood types the most prevalent blood type in the US is blood type O (44%), with blood type A at a close second (42%). In general, blood type O-positive is the most common blood type in the world, while AB-negative is considered the rarest, but does this trend apply to the blood type distribution in the US?

Frequency of a negative blood type