Ethnic groups Sex Rh-Positive Rh-Negative Total
Amhara Male Female 58 (78.37%) 9 (12.16%) 6 (8.11%) 1 (1.35%) 64 (88.49%) 10 (13.51%)
SNNP Male Female 26 (66.66%) 10 (25.64%) 1 (2.56%) 2 (5.13%) 27 (69.23%) 12 (30.77%)
Oromia Male Female 35 (67.31%) 13 (25.00%) 2 (3.85%) 2 (3.85%) 37 (71.15%) 15 (28.85%)
Tigray Male Female 8 (80.00%) 1 (10.00%) 1 (10.00%) - 9 (90.00%) 1 (10.00%)
Gambela Peoples Male Female 5 (100.00% - - - 5 (100.00%) -
Total   165 (91.66%) 15 (8.34%)  
Table 2: Rh blood group distribution among ethnic groups of 180 Physics students of Dilla University, Ethiopia