Document Detail

A test of agreement of customised birthweight models.
MedLine Citation:
PMID:  23374057     Owner:  NLM     Status:  In-Data-Review    
BACKGROUND: The objective of this study was to determine whether the physiological effects on birthweight as described by customised birthweight models (CBMs) from various populations and locations are consistent when applied to a single sample.
METHODS: The predicted birthweight was calculated for 52 826 White-European singleton term births between 1997 and 2008 from a large Australian hospital using the same set of variables from 12 published CBMs. The accuracy of prediction was tested against both the actual birthweight and a reference model. Intraclass correlation coefficients (ICCs) along with 95% confidence intervals of the measurements, paired differences (predicted-actual birthweight) and absolute values of the paired differences are reported.
RESULTS: The average difference in predicted and actual birthweight was <200 g for all CBMs, with ICCs for all but one model indicating fair agreement (between 0.3 and 0.5). When compared with the reference model, eight of the 11 models had a difference in predicted birthweight of <220 g, and the ICCs indicated that the majority of models had strong agreement.
CONCLUSION: All published CBMs demonstrated ability to predict birthweight with reasonable accuracy. The effects of maternal and fetal characteristics on birthweight appear to be consistent across birthweight models. This finding is a further step in validating the CBM, and provides greater evidence for the creation of a global model.
Kristen S Gibbons; Allan M Z Chang; Vicki J Flenady; Kassam Mahomed; Peter H Gray; Glenn J Gardener; Dominique Rossouw
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Paediatric and perinatal epidemiology     Volume:  27     ISSN:  1365-3016     ISO Abbreviation:  Paediatr Perinat Epidemiol     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-02-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8709766     Medline TA:  Paediatr Perinat Epidemiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  131-7     Citation Subset:  IM    
Copyright Information:
© 2013 Blackwell Publishing Ltd.
Mater Medical Research Institute; University of Queensland.
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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