Document Detail

The paradox of prematurity: The behavioral vulnerability of late preterm infants and the cognitive susceptibility of very preterm infants at 36 months post-term.
MedLine Citation:
PMID:  23261789     Owner:  NLM     Status:  Publisher    
We explored associations among preterm status (very preterm infant (VPI: <30 weeks), moderate preterm (MPI: 30-33(6/7) weeks), late preterm (LPI: 34-36(6/7) weeks), parenting, and 3-year cognitive and behavioral outcomes. We hypothesized that LPIs would demonstrate better health and neurobehavioral outcomes compared with more premature infants, and that preterm status would moderate the association between parenting quality and 3-year outcomes. Sample included 123 preterm infants (gestation <37 weeks) and their mothers from a larger study of high-risk infants with measures of neonatal and socioeconomic risks at hospital discharge; maternal vocabulary at 9-months, child IQ and behavior at 36 months, and maternal depressive symptoms and parenting at all timepoints. Group differences were explored using MANOVAs while predictors of child outcomes were explored using hierarchical regression analyses. MANOVAs indicated that LPIs had more optimal neonatal health during the hospital stay, yet more externalizing (p=.043), aggressive (p=.006) and oppositional behaviors (p=.008) at 3 years compared with VPIs. There were no IQ differences between VPIs, MPIs and LPIs. However, preterm infants who experienced less negative parenting had higher IQs at 36 months (β=-3.245, p=.017), with the greatest effects seen in VPIs (β=0.406, p=.01) compared with LPIs (β=0.148, p=.381). LPIs manifested similar IQ, but more externalizing, oppositional and aggressive behavior symptoms compared to VPIs. VPIs appeared to be differentially susceptible to parenting effects, with VPIs demonstrating the highest cognitive scores in the context of more positive parenting.
Prachi E Shah; Natashia Robbins; Renuka B Coelho; Julie Poehlmann
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-19
Journal Detail:
Title:  Infant behavior & development     Volume:  36     ISSN:  1934-8800     ISO Abbreviation:  Infant Behav Dev     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7806016     Medline TA:  Infant Behav Dev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  50-62     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Inc. All rights reserved.
Center for Human Growth and Development, University of Michigan, Ann Arbor, MI, United States; Division of Child Behavioral Health, Department of Pediatrics, University of Michigan, Ann Arbor, MI, United States. Electronic address:
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