Table 1 Characteristics of patients per unit included in follow-up study
Total (n = 67) | Unit A (n = 31) | Unit B (n = 36) | p-value | |
|---|---|---|---|---|
Male, n | 61% (41) | 74% (23) | 50% (18) | 0.05 |
Gestational age, weeks mean SD | 26 6/7 ± 4/7 | 26 6/7 ± 4/7 | 26 6/7 ± 4/7 | 0.65 |
Birth weight, grams mean SD | 900 ± 187 | 906 ± 178 | 895 ± 197 | 0.59 |
AS 5 minutes, median (IQR) | 8 (7-9) | 8 (7-9) | 8 (7-9) | 0.88 |
IVH ≥ grade 3 | 9% (6) | 13% (4) | 6% (2) | 0.40 |
BPD≥ moderate | 35% (23) | 29% (9) | 40% (14) | 0.35 |
ROP ≥ grade 2 | 12% (8) | 13%(4) | 11% (4) | 1.0 |
Total number of transfusions, mean SD | 5.5 ± 2.7 | 5.5 ± 3.2 | 5.5 ± 2.3 | 0.98 |
ML/per kg RBC administered, mean SD | 95 ± 49 | 79 ± 47 | 108 ± 47 | 0.02 |
Composite outcome | 31% (21) | 29% (9) | 33% (12) | 0.71 |