TABLE 1

Comparison of Infants With High Versus Low Coherence in the ULF Range

High Coherence (ULF Coh ≥ 0.5)Low Coherence (ULF Coh < 0.5)P
No. of infants915
Gestation, mean ± SD, wk24.7 ± 1.826.9 ± 2.2.015a
Birth weight, mean ± SD, g650.0 ± 115.0913.0 ± 265.0.011a
Postnatal age, mean ± SD, h27.9 ± 20.427.4 ± 24.2.958
Pco2, mean ± SD, kPa6.4 ± 0.96.8 ± 0.8.300
CRIB score, mean ± SD8.2 ± 3.24.8 ± 2.5.009a
Mean arterial blood pressure, mean ± SD, mm Hg30.7 ± 4.935.3 ± 4.5.029a
Mean TOI, mean ± SD, %61.2 ± 7.061.7 ± 6.3.574
No. of infants on inotropic medication (%)5 (55)3 (20).100
Incidence of grade II–IV IVH, n (%)3 (33)4 (27).792
No. of deaths60<.001a
ULF gain, mean ± SD, %/mm Hg0.76 ± 0.300.49 ± 0.24.025a
  • a The P value was <.05 between infants with high coherence and infants with low coherence.