First-time alloimmunization by corticosteroid classification
| Corticosteroid Classification | Negative Alloimmunization, n | Positive Alloimmunization, n | Event Rate, % | Fisher Exact P Value |
|---|---|---|---|---|
| None (n = 558) | 538 | 20 | 3.58 | .351 |
| Short acting (n = 2) | 2 | 0 | 0.00 | |
| Intermediate acting (n = 37) | 36 | 1 | 2.70 | |
| Long acting (n = 78) | 78 | 0 | 0.00 | |
| Combination (n = 33) | 33 | 0 | 0.00 | |
| Total (n = 708) | 687 | 21 | 2.97 |