White matter abnormality scores for the control and ELBW infants
| White Matter Abnormality Score | P Value (Compared with Controls) | |
|---|---|---|
| Controls (term infants) | 6.0 ± .0 | N/A |
| ELBW infants without blood product deposition on MRI | 6.2 ± .3 | .17 |
| ELBW infants with blood product deposition on MRI but no IVH diagnosis | 6.7 ± .9 | .02 |
| ELBW infants with grades 1 or 2 IVH diagnosis | 7.5 ± 1.7 | .003 |
| ELBW infants with grades 3 or 4 IVH diagnosis | 8.6 ± 1.3 | .0001 |