Document Detail

Trends in twin births in New South Wales, Australia, 1990-1999.
MedLine Citation:
PMID:  12384266     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To examine trends in gestational age and the mode of delivery of twins. METHOD: All twin births in New South Wales, Australia from 1990 through 1999 were analyzed. RESULTS: Twin births increased from 1922 (2.2%) in 1990 to 2522 (2.9%) in 1999. Twins born preterm (<37 weeks) increased from 40.8 to 48.8%. The increase in preterm twin births was associated with increases in induction of labor and cesareans before labor at 32-36 weeks. The rate of fetal deaths decreased by 49% and Apgar scores <4 at 5 min by 28%. CONCLUSIONS: A greater than expected increase in preterm twins was largely explained by an increase in elective deliveries at 35-36 weeks' gestation. Increasing maternal age does not appear to have contributed to the increase in preterm twin births. Lower rates of fetal death and low Apgar scores were achieved seemingly at the price of delivering more infants before term.
C L Roberts; C S Algert; J M Morris; D J Henderson-Smart
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics     Volume:  78     ISSN:  0020-7292     ISO Abbreviation:  Int J Gynaecol Obstet     Publication Date:  2002 Sep 
Date Detail:
Created Date:  2002-10-17     Completed Date:  2003-02-25     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0210174     Medline TA:  Int J Gynaecol Obstet     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  213-9     Citation Subset:  IM    
Centre for Perinatal Health Services Research and Senior Lecturer, School of Public Health, University of Sydney, Sydney, Australia.
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MeSH Terms
Apgar Score
Birth Weight
Delivery, Obstetric / statistics & numerical data*,  trends*
Fetal Death / epidemiology
Gestational Age*
Infant Mortality / trends
Infant, Newborn
Maternal Age
New South Wales / epidemiology
Pregnancy Outcome
Time Factors
Twins / statistics & numerical data*

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

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