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Late Preterm Infants Have Worse 24-Month Neurodevelopmental Outcomes Than Term Infants.
MedLine Citation:
PMID:  21321024     Owner:  NLM     Status:  Publisher    
Background: Late preterm infants (34-37 weeks' gestation) are often perceived at similar risks for morbidity and mortality as term infants. Objective: To compare the neurodevelopmental outcomes of late preterm to term infants. Methods: Our study sample of 6300 term and 1200 late preterm infants came from the Early Childhood Longitudinal Study-Birth Cohort. We used general estimating equations to get weighted odds of having developmental delay, mental index scores (MDI) or psychomotor index scores (PDI) < 70, at 24 months of age. Results: Late preterm infants compared with term infants had lower MDI (85 vs 89) and PDI (88 vs 92), both P < .0001, respectively. A higher proportion of late preterm infants compared with term infants had an MDI <70 (21% vs 16%; P < .0001). An equal number had PDIs <70 (6.1% vs 6.5%). After controlling for statistically significant and clinically relevant descriptive characteristics, late preterm infants still had higher odds of mental (odds ratio: 1.52 [95% confidence interval: 1.26-1.82] P < .0001) or physical (odds ratio: 1.56 [95% confidence interval: 1.30-1.89] P < .0001) developmental delay. Conclusions: Late preterm infants have poorer neurodevelopmental outcomes than term infants and have increased odds to have a mental and/or physical developmental delay.
Melissa A Woythaler; Marie C McCormick; Vincent C Smith
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-14
Journal Detail:
Title:  Pediatrics     Volume:  -     ISSN:  1098-4275     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-2-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376422     Medline TA:  Pediatrics     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Neonatology, Massachusetts General Hospital, Boston, Massachusetts;
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