Table 2:

Gestational and postmenstrual ages for control and ELBW infants

Number of SubjectsGestational Age (weeks)Postmenstrual Age at MRI (weeks)P Value of Postmenstrual Age Compared with Controlsa
Controls (term infants)n = 1039.0 ± 0.941.2 ± 1.0N/A
ELBW infants without blood product deposition on MRIn = 925.2 ± 1.240.1 ± 1.0.05
ELBW infants with blood product deposition on MRI but no IVH diagnosisn = 925.2 ± 1.440.4 ± 1.1.18
ELBW infants with grades 1 or 2 IVH diagnosisn = 824.7 ± 1.241.1 ± 3.7.51
ELBW infants with grades 3 or 4 IVH diagnosisn = 725.3 ± 1.340.4 ± 2.7.16
  • a P > .05 for the age comparison between any ELBW groups.