CP-EDIT: Cerebral Palsy - Early Diagnosis and Intervention Trial

Inclusion Criteria: Group A: 'Newborn-detectable risk-pathway' * Preterm birth with gestational age below 32 or birth weight below 1500 g and clinical concern * Moderate to severe brain injury (Papile grade 3 to 4 intraventricular haemorrhage, cystic periventricular leukomalacia, neonatal stroke, term hypoxic-ischaemic encephalopathy (≥35 weeks gestation at birth) or other significant neurological condition) * History (e.g. neonatal seizures, Extra Corporal Membrane Oxygenation, meningitis, kernicterus, severe hypoglycemia) or neurological risk factors (brain malformation, increased tone) * Parental concern and one of the factors above Group B: 'Infant detectable risk-pathway' * Inability to sit independently by age 9 months * Hand function asymmetry or crawl asymmetry * Inability to take weight through the plantar surface of the feet * History (as above) or neurological risk factors * Parental concern and one of the factors above Exclusion Criteria: * 1\) Infants with progressive or neurodegenerative disorders or genetic disorders not associated with CP, 2) Infants with other disability diagnoses e.g. Down Syndrome.