[The study of the frequency of AB0 blood groups in blood component donors and cancer inpatients].

The frequency of AB0 blood groups was analyzed in donors and cancer patients. Blood group A(II) was found to be more common in patients with cancers at various sites. Blood groups 0(I) (35.9%) and A(II) (35.6%) were most common in donors. This seems to be linked with that the subjects with blood group 0(I) are actively involved in donation. The study allow conclusion that it is expedient to incorporate blood samples from cancer inpatients into an immunohematological assay for antigen A variants.