Document Detail


Variation in rates of postterm birth in Europe: reality or artefact?
MedLine Citation:
PMID:  17617197     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To compare rates of postterm birth in Europe. DESIGN: Analysis of data from vital statistics, birth registers, and national birth samples collected for the PERISTAT project. SETTING: Thirteen European countries. POPULATION: All live births or representative samples of births for the year 2000 or most recent year available. METHODS: Comparison of national and regional rates of postterm birth. Other indicators (birthweight, deliveries with a non-spontaneous onset and mortality) were used to assess the validity of postterm rates. MAIN OUTCOME MEASURES: The proportion of births at 42 completed weeks of gestation or later. RESULTS: Postterm rates varied greatly, from 0.4% (Austria, Belgium) to over 7% (Denmark, Sweden) of births. Higher postterm rates were associated with a greater proportion of babies with birthweight 4500 g or more. Fetal and early neonatal mortality rates were higher among postterm births than among births at 40 weeks. Countries with higher proportions of births with a nonspontaneous onset of labour had lower postterm birth rates. The shapes of the gestational-age distributions at term varied. In some countries, there was a sharp cutoff in deliveries at 40 weeks, while elsewhere this occurred at 41 weeks. CONCLUSIONS: These results suggest that practices for managing pregnancies continuing beyond term differ in Europe and raise questions about the health and other impacts in countries with markedly high or low postterm rates. Some variability in these rates may also be due to methods for determining gestational age, which has broader implications for international comparisons of gestational age, including rates of postterm and preterm births and small-for-gestational-age newborns.
Authors:
J Zeitlin; B Blondel; S Alexander; G Bréart;
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Publication Detail:
Type:  Comparative Study; Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't     Date:  2007-07-06
Journal Detail:
Title:  BJOG : an international journal of obstetrics and gynaecology     Volume:  114     ISSN:  1471-0528     ISO Abbreviation:  BJOG     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2007-09-06     Completed Date:  2007-10-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100935741     Medline TA:  BJOG     Country:  England    
Other Details:
Languages:  eng     Pagination:  1097-103     Citation Subset:  AIM; IM    
Affiliation:
INSERM, UMR S149, Epidemiological Research Unit on Perinatal and Women's Health, Paris, France. zeitlin@cochin.inserm.fr
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MeSH Terms
Descriptor/Qualifier:
Age Distribution
Europe / epidemiology
Female
Gestational Age
Humans
Pregnancy
Pregnancy, Prolonged / epidemiology*
Prenatal Care / statistics & numerical data
Stillbirth / epidemiology

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


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