[Pre-school cognitive development of very low birth weight preterm children].

Objective: To examine the cognitive development of school-aged children born preterm and with very low birthweight.

Methods: A cohort of premature infants born between January, 1991, and September, 1993 was examined at pre-school age. All of them were born in a public Neonatal Intensive Care Unit, with birth weight less than 1,500 g.