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Table 3 Unadjusted odds ratio of receiving RBC transfusions according to infant’s characteristics and neonatal unit

From: Factors associated with red blood cell transfusions in very-low-birth-weight preterm infants in Brazilian neonatal units

  OR 95 % CI p
Gestational age (weeks) 0.731 0.713 – 0.750 <0.001
Birth weight < 1000 grams 5.418 4.714 – 6.228 <0.001
5th minute Apgar <7 2.472 2.055 – 2.973 <0.001
SNAPPE II (score) 1.033 1.029 – 1.037 <0.001
Respiratory distress syndrome 4.049 3.541 – 4.630 <0.001
Apnea 2.419 2.135 – 2.740 <0.001
Patent ductus arteriosus 2.479 2.172 – 2.828 <0.001
Clinical sepsis 7.903 6.867 – 9.094 <0.001
Necrotizing enterocolitis 6.795 4.862 – 9.496 <0.001
PIVH grades 3-4 2.855 2.212 – 3.685 <0.001
Need for oxygen at 28 days of life 1.625 1.502 – 1.757 <0.001
Retinophaty of prematurity 2.003 1.705 – 2.353 <0.001
Use of umbilical catheter 2.910 2.555 – 3.314 <0.001
Need for mechanical ventilation 8.754 7.581 – 10.109 <0.001
Use of vasoactive drugs 2.868 2.304 – 3.570 <0.001
Need for parenteral nutrition 7.870 6.009 – 10.308 <0.001
Intra-hospital death 2.534 2.135 – 2.740 <0.001
Unit M 1.015 0.697 – 1.477 0.939
Unit A 1.341 0.883 – 2.036 0.169
Unit J 1.436 0.910 – 2.264 0.120
Unit B 1.563 1.146 – 2.133 0.005
Unit D 1.587 1.038 – 2.427 0.033
Unit I 1.918 1.324 – 2.778 0.001
Unit O 2.051 1.321 – 3.185 0.001
Unit E 2.176 1.518 – 3.118 <0.001
Unit P 2.208 1.495 – 3.263 <0.001
Unit G 2550 1.789 – 3.635 <0.001
Unit C 2.832 1.941 – 4.132 <0.001
Unit L 3.290 2.229 – 4.854 <0.001
Unit K 3.591 2.511 – 5.136 <0.001
Unit H 3.814 2.573 – 5.654 <0.001
Unit N 4.926 3.209 – 7.561 <0.001
  1. SNAPPE II Morbidity and mortality risk scores, PIVH peri-intraventricular hemorrhage