Frequency Distribution of Abo Blood Group and Rh Factor among the Local Domiciles of East Midnapore District, West Bengal

Since the discovery of ABO blood group system by Landsteiner a voluminous data is available on the frequencies of ABO blood group and also Rh factor for most parts of the world but such type of data among the localites of East Midnapur is still lacking. The present study is undertaken to find out the normal ABO and Rh frequencies among the localites of East Midnapore.

A total of 2256 domicile individuals from East Midnapore district are selected from the BDS students, staffs of the Dental colleges and local domicile population reported to the pathological laboratory of our associated hospital (Dr. B. C. Roy Hospital) for blood group determination. Blood sample were collected under aseptic condition by venepuncture from the antecubital vein. The ABO blood group and Rh factor are determined immediately after blood collection using the Tile or Slide testing. It is found that the most common type of blood group is B type followed by O , A and then AB. The prevalence of Rh positive population in East Midnapore is considerably higher than the Rh negative individuals like other parts of India.