Blood group Opositive was predominant in Balochi 381(41%), Mohajir 197(36%), Sindhi 147(38%), Hindko 39(44%) and Seraiki14(43.8%) groups, while B-positive was common among Pathan 207(35%), Punjabi 116(35%), Kacchi 123(37%), Memon 79(37%) and Bengali 20(36%) groups.Ĭonclusion: O positive was the most common and AB negative was the least common blood groups among different ethnic populations of Karachi.
Blood groups typing was carried out using Slide Agglutination (antigen-antibody) method with antisera anti-A, anti-B, and anti-D. Methods: The retrospective cross-sectional study was conducted at Kharadar General Hospital, Karachi, from May to Dec 2017, and comprised antenatal and walk-in individuals of different ethnic groups who were tested at the hospital's clinical laboratory. Many donors are lost each year because they have changed thier address.Objective: To determine the distribution pattern of ABO and Rhesus blood groups among different ethnic populations in an urban centre. If you have changed your address please inform NHS Blood and Transplant. Perhaps most important of all – KEEP IN TOUCH.
Blood of the same ABO and Rh group can be transfused with no need to match for any of the blood groups. An individual who has never received a blood transfusion is unlikely to possess any antibodies. Before any blood transfusion is given, the hospital would check the patient’s ABO and Rh group and test to see if the blood contained antibodies to a selection of other blood groups. Why do we need blood with these special groups?īriefly, for patients with these special groups. When we look at some of the other blood group systems we can see some interesting differences between their distribution in black and white people: Group B is fairly uncommon in Europeans – 14%, but 35% of Chinese have this group. For example, 85% of Europeans are Rh (Rhesus) D positive, about 95% of West Africans are Rh D positive but among the Chinese the figure is 100%. Very often it is, because the distribution of blood groups varies throughout the world. Is blood from Afro-Caribbean donors different? When we look at these we realise that the combinations are endless, and that no two people (except identical twins) will have exactly the same blood groups. However, there are many more blood groups (about 23) which can be identified. When you become a blood donor you are grouped as Group O, Group A, Group B or Group AB, and your blood donor certificate book also tells you whether you are Rh (Rhesus) D negative or positive. It is not endorsed by the Sickle Cell Society and does not form part of our Information Standard-accredited information The information presented in this article came from the Blood Transfusion ServiceĪs you probably know, your blood group is inherited from your parents.