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Abstract
Cognitive deficits, school difficulties, and behavioral problems are often reported for children born with extremely low birth weight (ELBW; birth weight 1-3 A recent meta-analysis of case-control studies reported from 1980 to November 2001 that examined cognitive and behavioral outcomes found that the mean IQ for school-aged children born very preterm was approximately two-thirds SD below that of healthy controls.4 In addition, the meta-analysis found that preterm children exhibited more externalizing, internalizing, and attentional behavior problems than healthy controls, although these difficulties were not present in all studies.4
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