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Frequency of NEC by posttransfusion epoch*
| Posttransfusion epoch |
|||||
|---|---|---|---|---|---|
| 0-2 d | 3-4 d | 5-6 d | 7-8 d | >8d | |
| Epochs with NEC | 4 | 2 | 4 | 2 | 3 |
| Epochs without NEC | 1750 | 1012 | 704 | 505 | 1358 |
| NEC rate per epoch, % | 0.23 | 0.20 | 0.57 | 0.40 | 0.22 |
No difference in expected vs observed rate of NEC by posttransfusion epoch; P = .58.
Excludes epochs with no previous transfusions.
