Abstract: The haptoglobin groups were typed for 510 subjects from 3 ethnic groups, Han, Olunchunand Xibo in the northeast region of China. The gene frequencies of haptoglobin were calcula-ted in 3 ethnic groups and were compared with each other. The distributions of Hp phenotypewere compared and no evidence of difference among these 3 populations was found. Associationof Hp gene with ABO blood group was also studied.

Key words: Haptoglobin; ABO blood group; Polymorphism