A STUDY OF DISTRIBUTION OF ABO AND RH BLOOD GROUPS SYSTEM AMONG BLOOD DONORS AT A TERTIARY CARE HOSPITAL

Up till now about 400red cells antigen have been identified. The majority are inherited by Mendelian fashion. The ABO and Rh blood group system was first to be identified and is most important for blood transfusion purposes. OBJECTIVE: This study was conducted to determine the frequency of ABO and Rhesus (Rh) blood groups in a tertiary care teaching hospital in India. MATERIALS AND METHODS: A retrospective data based study was conducted at blood bank, Chirayu Medical College and Hospital, Bhopal, Madhya Pradesh, India over a period of four years. RESULTS: Study includes a record of 3188 (28.54%) voluntary and 7982 (71.46%) replacement donors attending blood bank from February 2011 to January 2015. Out of 11170, 10723(95.998%) were male and 447(4.002%) female donors. The most common blood group was found to be B in 4013 (35.927%) donors followed by O in 3462 (30.994%) donors, an in 2516 (22.524%) donors and AB in 1179 (10.555%) donors. Out of these, 10659(95.425%) donors were Rh-positive while 511(4.575%) were Rh-negative.