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Table 1 Hemogasanalysis components levels in neonates according to significant hyperbilirubinemia, total serum bilirubin >9 mg/dl at 36 h of life

From: Umbilical cord blood acid-base analysis and the development of significant hyperbilirubinemia in near-term and term newborns: a cohort study

  Total Serum Bilirubin at 36 h  
≤9 mg/dL >9 mg/dL p
Group size, % 404 (75.2%) 133 (24.8%)  
Bilirubin at 36 h, mg% 6.92 (1.612) 10.04 (0.798) <0.001
Cesarean delivery rate, % 27.73 (44.31) 14.29 (35.13) 0.001
Gestational age, weeks 39 (1.18) 39 (1.33) 0.212
Female, % 53.22 (49.96) 45.86 (50.02) 0.142
Birth weight, g 3320 (436) 3340 (419) 0.643
Body weight at 36 h, g 3112 (413) 3125 (397) 0.753
Delta weight decrease, g −207 (66) −211 (64) 0.574
Hematocrit at birth, % 49.44 (4.75) 51.65 (5.16) <0.001
Hematocrit at 36 h, % 52.10 (6.83) 55.72 (6.58) <0.001
pH, units 7.34 (0.076) 7.34 (0.079) 0.736
PaCO2, mmHg 43.10 (9.47) 41.45 (8.54) 0.076
PaO2, mmHg 23.93 (9.70) 23.86 (7.78) 0.938
HCO3 , mEq/L 21.29 (2.25) 20.71 (2.37) 0.010
Base Deficit, mEq/L −2.68 (3.266) −3.52 (3.188) 0.010
Lactacidemia, mEq/L 3.39 (1.737) 3.84 (1.864) 0.012
  1. Mean (± Standard Deviation, SD) or Percentage if not otherwise stated
  2. P < 0.05, Statistical significance by Student T test