Ethnic groups Sex A B AB O Total   
Amhara Male
Female
18 (24.32%)
4 (5.41%)
18 (24.32%)
4 (5.41%)
2 (2.70%)
-
26 (35.14%)
2 (2.70%)
64 (86.49%)
10 (13.51%)
SNNP Male
Female
8 (20.51%)
2 (5.13%)
10 (25.64%)
4 (10.25%)
1 (2.56%)
-
8 (20.51%)
6 (15.85%)
27 (69.23%)
12 (30.77%)
Oromia Male
Female
12 (23.07%)
5 (9.62%)
7 (13.46%)
5 (9.62%)
1 (1.92%)
2 (3.85%)
17 (32. 69%)
3 (5.77%)
37 (71.15%)
15 (28.85%)
Gambela Peoples Male
Female
1 (20.00%)
-
2 (40.00%)
-
-
-
2 (40.00%)
-
5 (100.00%)
-
Tigray Male
Female
3 (30.00%)
-
2 (20.00%)
-
-
-
4 (40.00%)
1 (10.00%)
9 (90.00%)
1 (10.00%)
Total   53 (29.44%) 52 (28.88%) 6 (3.33%) 69 (38.33%)  
Note: Key=- means there is no student that have such type of blood
Table 1: ABO blood group distribution among ethnic groups of 180 Physics students of Dilla University, Ethiopia