Neurological diseases in study and control patients
| Neurological diseases | Study group (n = 29) | Control group (n = 37) |
|---|---|---|
| No of patients* | No of patients* | |
| *Most patients had more than one neurological abnormality | ||
| Developmental delay | 10 | 4 |
| Cerebral palsy | 4 | 2 |
| Attention deficit disorder | 4 | 1 |
| History of intracranial haemorrhage | 4 | 0 |
| Periventricular leucomalacia | 3 | 1 |
| Seizure disorder | 2 | 4 |
| Cortical visual impairment | 2 | 0 |
| History of hydrocephalus | 1 | 0 |
| History of anoxic brain damage | 1 | 0 |
| History of encephalitis | 1 | 0 |
| Autism | 1 | 1 |