Distribution of ABO and Rh blood groups in Greece: an update.

The aim of this study was to investigate and evaluate the frequency of the antigens classifying the ABO and Rh blood groups in the Greek population. In this study the 3.5% were first generation immigrants with both their parents immigrants from countries of the USSR, while 1.2% had only one immigrant parent, while the other one was Greek. We compared the frequency of distribution of blood groups ABO and Rh to previous studies conducted at a time before Greece became destination for refugees and immigrants from East and Northeast countries. Blood samples were collected from first year medical students. The frequency of distribution of the ABO and Rh blood groups was slightly differentiated in comparison to previous relevant studies. Significant increase was recorded with respect to the emergence of blood group B in the population investigated, and a considerable reduction was noted in blood group O. In reference to the remaining blood groups, no statistically significant difference was documented. The genetic pool and the genetic inventory of the population residing in Greece have been modified during the last years potentially due to the first generation immigrants. The results of this study could contribute significantly to the National Health System in aiding the prediction of percussions of certain diseases related to blood groups, as well as the requirement for certain blood groups within the blood donation program.