Figure 1 Flow diagram of the very low birth weight study population at 15 years. *One adolescent had Down's syndrome, one adolescent had severe cerebral palsy (tetraplegia) and severe learning disability, one adolescent had moderate cerebral palsy (diplegia), severe learning disability and blindness due to retinopathy of prematurity. †Two boys had mild cerebral palsy (hemiplegia and diplegia).