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The presence of neurological risk factors for VPD.
| Type of neurological risk* | Presence (N) |
| Evidence of brain damage: | 13 |
| IVH grade II or III | 8 |
| Germinal matrix hemorrhage | 2 |
| Venous infarction | 3 |
| CNS sepsis | 1 |
| Ventricular dilation | 2 |
| Meningitis | 1 |
| Developmental venous anomaly | 1 |
| Cerebral palsy | 4 |
| Strabismus | 3 |
| Abnormal head circumference | 0 |
*Factors are not mutually exclusive.
IVH, intraventricular hemorrhage; CNS, central nervous system.
