Document Detail


Analysis of factors affecting birthweight, birth length and head circumference: study of Japanese triplets.
MedLine Citation:
PMID:  16354507     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aims of this study were to identify factors associated with birthweight, birth length and head circumference for triplets, and analyze these body size parameters at birth, especially head circumference, according to gestational age. The subjects of this study were 370 mothers and their 1109 triplet children (excluding one stillborn infant) who were born between 1978 and 2002. The gestational age proved to be the strongest contributing factor to birthweight, birth length and head circumference of the triplets. Moreover, sex was a significant factor affecting birthweight, birth length and head circumference. Male neonates had a higher birthweight, longer birth length and greater head circumference than female neonates. Birth order in triplets also had a significant effect on birthweight and head circumference. Lower birth-order neonates had a higher birthweight and greater head circumference. An effect of maternal pregravid body mass index (BMI) on both birthweight and birth length was observed. The birthweights of triplets born to women whose pregravid BMIs were more than 26.0 kg/m2 weighed an average of 150 g more than those of triplets born to women whose pregravid BMIs were less than 19.8 kg/m2, and the birth length of triplets born to women whose pregravid BMIs were more than 26.0 kg/m2 averaged 1.5 cm longer than those of triplets born to women whose pregravid BMIs were less than 19.8 kg/m2. Concerning head circumference, the median head circumference of male neonates was approximately 0.5 cm longer than female neonates. Compared to singleton neonates, the median head circumference of triplets was almost the same.
Authors:
Yoshie Yokoyama; Masako Sugimoto; Syuichi Ooki
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Twin research and human genetics : the official journal of the International Society for Twin Studies     Volume:  8     ISSN:  1832-4274     ISO Abbreviation:  -     Publication Date:  2005 Dec 
Date Detail:
Created Date:  2005-12-15     Completed Date:  2006-03-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  101244624     Medline TA:  Twin Res Hum Genet     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  657-63     Citation Subset:  IM    
Affiliation:
Faculty of Health Sciences, Okayama University Medical School, Okayama-city, Okayama, Japan. yyoko@md.okayama-u.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Birth Weight / physiology*
Body Height / physiology*
Body Mass Index*
Female
Gestational Age
Humans
Infant, Newborn
Japan
Male
Pregnancy
Retrospective Studies
Sex Factors
Triplets / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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