Table 2 Differences in variables between infants that received 10 ml/kg vs. 15 ml/kg blood transfusion volumes.
From: Changes in urinary kidney injury molecule-1 levels after blood transfusions in preterm infants
Variable | 10 ml /kg volume | 15 ml /kg volume | p value |
|---|---|---|---|
Number of infants | 12 | 22 | 0.33 |
Gestational age, weeks | 25 (24, 29) | 25 (24, 28) | 0.51 |
Gender, male, n (%) | 6 (50) | 9 (41) | 0.61 |
Race, Black = 40 | 8 (67) | 17 (77) | 0.5 |
Birth weight, g | 795 (630, 1055) | 815 (570, 990) | 0.79 |
PMA at transfusion, weeks | 33 (± 6) | 30(± 4) | 0.06 |
Age at transfusion, days | 29 (24, 64) | 26 (19, 45) | 0.29 |
Serum creatinine mg/dl | 0.45 (0.35, 0.50) | 0.40 (0.40, 0.50) | 0.81 |
Prior history of acute kidney injury | 2 (17) | 2 (9) | 1 |
Transfusions in preceding 48 h | 1 (8) | 1 (5) | 0.47 |
Pretransfusion KIM-1 pg/mg | 1032 (625, 2365) | 2610 (1560, 5080) | 0.04 |
FiO2, % | 28 (21, 36) | 30 (23, 45) | 0.43 |
Respiratory severity score | 3.9 (3.9, 4.3) | 4.3 (3.3, 6.8) | 0.95 |
Intubated | 5 (42) | 9 (41) | 0.97 |
Antibiotics in preceding 72 h, n = 21 | 4 (33) | 8 (36) | 1 |
Diuretics in preceding 48 h, n = 27 | 4 (33) | 11 (50) | 0.48 |
Hematocrit at transfusion (%) | 26 (± 4) | 27(± 4) | 0.35 |
Storage, 15 (12, 18) days | 16(± 4) | 14(± 4) | 0.27 |
Systolic blood pressure | 71 (55, 77) | 69 (62, 74) | 0.96 |
Mean blood pressure | 53 (37, 55) | 50 (44, 54) | 1.0 |
Diastolic blood pressure | 32 (26, 46) | 38 (33, 43) | 0.60 |
Number of transfusions with positive increase | 12 (100) | 12 (60) | 0.014 |
