No trial, to our knowledge, has yet reported neurologic outcomes at ages older than 18 months. Neurodevelopmental assessments at 18 months may not reliably predict later outcomes.25 Although it is likely that severe neuromotor disability will have been correctly identified at 18 months, less severe impairments are not reliably assessable at this age. Assessment later in childhood (e.g., at 6 to 7 years of age) is necessary for accurate, com- prehensive evaluation of cognitive function, be-
havior and learning, fine motor development, at- tention, and psychosocial health.