| Variable | Frequency (n = 39) | Percent |
| diminished neonatal reflexes | 20 | 51.3 |
| Hypotonia | 12 | 30.8 |
| motor deficit | 15 | 38.4 |
| Intracranial hypertension | 10 | 25.6 |
| seizures | 4 | 10.25 |
| psychomotor delay | 17 | 43.6 |