Objective: The goal was to identify, among extremely low birth weight (
Methods: Unimpaired outcome was defined as Bayley Scales of Infant Development II scores of >or=85, normal neurologic examination findings, and normal vision, hearing, swallowing, and walking. Outcomes were determined for 5250 (86%) of 6090 extremely low birth weight inborn infants.

Results: Of the 5250 infants whose outcomes were known at 18 months, 850 (16%) were unimpaired, 1153 (22%) had mild impairments, 1147 (22%) had moderate/severe neurodevelopmental impairments, and 2100 (40%) had died. Unimpaired survival rates varied according to birth weight, from <1% for infants
Conclusions: Although <1% of live-born infants of

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2856069PMC
http://dx.doi.org/10.1542/peds.2008-2742DOI Listing

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