Document Detail

Maternal risk factors for small-for-gestational age newborns in Japanese dichorionic twins.
MedLine Citation:
PMID:  21083834     Owner:  NLM     Status:  MEDLINE    
AIM: To investigate the maternal risk factors for small-for-gestational age (SGA) newborns in Japanese dichorionic (DC) twins.
METHODS: A retrospective study was conducted from 2003 to 2008 on 340 DC twin pregnancies resulting in two live births. Newborns were classified as SGA if their birth weight was below the 10th percentile according to Japanese singleton norms. Statistical differences were evaluated between pregnancies resulting in appropriate-for-gestational age (AGA) pairs and those resulting in at least one SGA neonate.
RESULTS: The study population consisted of AGA/AGA (50.8%), AGA/SGA (37.0%) and SGA/SGA pairs (12.0%). Logistic regression analysis identified significant interrelations for SGA with maternal nulliparity (odds ratio [OR] 0.52, 95% confidence interval [CI] 0.30-0.91), smoking (OR 3.25, 95% CI 1.09-9.66), assisted reproductive technology (OR 0.52, 95% CI 0.30-0.89), pregnancy-induced hypertension (OR 2.00, 95% CI 1.01-4.31), pregravid weight (kg) (unitary OR 0.94, 95% CI 0.91-0.97) and monthly weight gain (kg/month) (unitary OR 0.25, 95% CI 0.14-0.44). Bivariable receiver operating characteristic curves were generated for monthly weight gain (area under the curve [AUC] 0.626, cutoff 1.41 kg/month, P<0.001) and total weight gain (AUC 0.615, cutoff 14.0 kg, P<0.001).
CONCLUSION: Cigarette smoking and weight gain control are relatively modifiable factors for which interventional management is necessary to avoid perinatal problems arising from SGA pregnancy. Further studies are needed to investigate optimal nutrition, health guidance and subsequent weight gain control that lead to concrete improvement in maternal and infant prognoses.
Yusuke Inde; Misao Satomi; Nao Iwasaki; Shuichi Ono; Eriko Yamashita; Miwa Igarashi; Yoshie Hiraizumi; Tomoaki Murata; Hidehiko Miyake; Shunji Suzuki
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Publication Detail:
Type:  Journal Article; Twin Study     Date:  2010-11-18
Journal Detail:
Title:  The journal of obstetrics and gynaecology research     Volume:  37     ISSN:  1447-0756     ISO Abbreviation:  J. Obstet. Gynaecol. Res.     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-01-06     Completed Date:  2011-05-20     Revised Date:  2012-01-19    
Medline Journal Info:
Nlm Unique ID:  9612761     Medline TA:  J Obstet Gynaecol Res     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  24-31     Citation Subset:  IM    
Copyright Information:
© 2010 The Authors. Journal of Obstetrics and Gynaecology Research © 2010 Japan Society of Obstetrics and Gynecology.
Department of Obstetrics and Gynaecology, Japanese Red Cross Katsushika Maternity Hospital, Tokyo, Japan.
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MeSH Terms
Fetal Growth Retardation / epidemiology,  etiology*
Infant, Newborn
Infant, Small for Gestational Age*
Japan / epidemiology
Retrospective Studies
Risk Factors

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

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