Journal
JOURNAL OF THE INTERNATIONAL NEUROPSYCHOLOGICAL SOCIETY
Volume 16, Issue 1, Pages 169-179Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1355617709991147
Keywords
Preterm birth; Neurobehavioral manifestations; Cognitive aspects; Motor skills; Children; Language
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Funding
- Merrill Palmer Skillman Institute
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Willi the increasing survival of extremely preterm (EP) birth infants in the surfactant era, the longer-term outcome of infants born at the threshold of viability has become a vital topic of Study. The goal Of this investigation wits twofold. First, while taking into account the influence of sociodemographic confounds, we wished to investigate neuropsychological outcome differences between two groups of EP preschoolers: 23-24 weeks (n = 20), and 25-26 weeks' (n = 21) gestation at delivery. Second, we wished to explore whether. within the population of EP preschoolers, gestational maturity accounts for a unique Portion of the variance in neuropsychological outcome, over and above the variance explained by ante-, peri-, and neonatal complications. or treatment factors. The findings revealed group differences, ranging from .70 to .80 of a standard deviation in general intellectual abilities, nonverbal intelligence. and global motor performance, in favor of the more mature EP group. Additionally, gestational Maturity was found to explain a unique portion of the variance in global intellectual and motor abilities. These findings are interpreted from the perspective that gestational age is an index of the Vulnerability of the central nervous System to disruption of developmentally regulated processes. (JINS, 2010, 16, 169-179.)
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