Alloantibodies identified among the studied multi-transfused patients with β-thalassemia major
| Presence or absence of alloantibodies | N | % |
|---|---|---|
| Negative alloantibody | 192 | 94.2 |
| Positive alloantibody | 12 | 5.8 |
| Anti-E | 5 | 2.4 |
| Anti-C | 3 | 1.4 |
| Anti-e | 2 | 1 |
| Anti-K (Kell) | 2 | 1 |
| Total study group | 204 | 100 |
