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ABO Groups and Frequencies

ABO group frequencies vary according to ethnicity. This will be an important fact to consider when working through ABO discrepancy resolution. The table below delineates frequencies of ABO occurrences according to ethnic groups.

Asian 40% 28% 25% 7%
Black 51% 26% 19% 4%
Caucasian 45% 40% 11% 4%
Hispanic 57% 31% 10% 2%
Statistical information from the Red Cross. Available at: Accessed March 20, 2015.