Document Detail


Does the individualized reference outperform a simple ultrasound-based reference applied to birth weight in predicting child neurodevelopment?
MedLine Citation:
PMID:  21154763     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: Being small-for-gestational age (SGA) is associated with an increased risk of morbidity, but questions remain about how best to diagnose SGA, and thus, predict poor health consequences. The authors sought to compare an individualized reference for defining SGA with simple birth weight-based and ultrasound-based references applied to birth weight in predicting poor cognitive development at age five.
METHODS: The authors used data from the Successive SGA Births Study, a prospective study including 699 Alabaman and 618 Scandinavian women recruited from 1986 to 1988, and whose children had cognitive development scores measured at age five using the Wechsler Preschool and Primary Scale of Intelligence-Revised Intelligence Quotient. Sensitivity, specificity and positive predictive value (PPV) were estimated for each reference applied to birth weight using adverse cognitive development (score < 10(th) percentile) as the outcome. Relative risk of poor neurodevelopment was calculated, comparing infants classified as SGA by either the individualized or the simple ultrasound-based reference with infants not classified as SGA.
RESULTS: The individualized reference had higher specificity and PPV in predicting poor neurodevelopment. Neonates defined as SGA by the individualized reference alone had a higher risk (RR=2.20, 95% CI: 1.20, 4.00) of poor cognitive outcome, while those identified by the ultrasound-based reference alone did not (RR=0.95, 95% CI: 0.45, 2.01). None of the references could predict poor neurodevelopment well at age five.
CONCLUSIONS: The individualized birth weight reference modestly outperforms the simple ultrasound-based reference in identifying SGA infants with poor child neurodevelopment. However, neither reference can predict child neurodevelopment well.
Authors:
G Neta; J Grewal; R Mikolajczyk; M Klebanoff; J Zhang
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Intramural     Date:  2011-06-02
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  38     ISSN:  1469-0705     ISO Abbreviation:  Ultrasound Obstet Gynecol     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-06-29     Completed Date:  2011-09-12     Revised Date:  2013-07-03    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  England    
Other Details:
Languages:  eng     Pagination:  62-6     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 ISUOG. Published by John Wiley & Sons, Ltd.
Affiliation:
Epidemiology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA. netagil@mail.nih.gov
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MeSH Terms
Descriptor/Qualifier:
Birth Weight / physiology*
Child Development / physiology*
Child, Preschool
Developmental Disabilities / classification*,  physiopathology,  ultrasonography
Female
Gestational Age
Humans
Infant
Infant, Newborn
Infant, Small for Gestational Age / physiology*
Male
Predictive Value of Tests
Pregnancy
Prospective Studies
Reference Standards
Reference Values
Risk Assessment
Sensitivity and Specificity
Grant Support
ID/Acronym/Agency:
Z99 CA999999/CA/NCI NIH HHS
Comments/Corrections

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