[Development over 10 years of children with birth weight less than 1501 g].

170 Children born between 1971 and 73 and hospitalised at the neonatal intensive care unit of the Hospital for Children of the University of Basel because of very low birth weight and/or IRDS are re-examined at the age of 10 years. First analyses show high mortality amongst the children with very low birth weight (38% of 122 died up to the age of 10 years) and a physical development (weight and height) below that of a representative sample of children of the same age.