International variations in the gestational age distribution of births: an ecological study in 34 high-income countries

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023698%3A_____%2F18%3AN0000019" target="_blank" >RIV/00023698:_____/18:N0000019 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1093/eurpub/ckx131" target="_blank" >https://doi.org/10.1093/eurpub/ckx131</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/eurpub/ckx131" target="_blank" >10.1093/eurpub/ckx131</a>

Result language

angličtina

Original language name

International variations in the gestational age distribution of births: an ecological study in 34 high-income countries

Original language description

Few studies have investigated international variations in the gestational age (GA) distribution of births. While preterm births (22-36 weeks GA) and early term births (37-38 weeks) are at greater risk of adverse health outcomes compared to full term births (39-40 weeks), it is not known if countries with high preterm birth rates also have high early term birth rates. We examined rate associations between preterm and early term births and mean term GA by mode of delivery onset. METHODS: We used routine aggregate data on the GA distribution of singleton live births from up to 34 high-income countries/regions in 1996, 2000, 2004, 2008 and 2010 to study preterm and early term births overall and by spontaneous or indicated onset. Pearson correlation coefficients were adjusted for clustering in time trend analyses. RESULTS: Preterm and early term births ranged from 4.1% to 8.2% (median 5.5%) and 15.6% to 30.8% (median 22.2%) of live births in 2010, respectively. Countries with higher preterm birth rates in 2004-2010 had higher early term birth rates (r > 0.50, P < 0.01) and changes over time were strongly correlated overall (adjusted-r = 0.55, P < 0.01) and by mode of onset. CONCLUSION: Positive associations between preterm and early term birth rates suggest that common risk factors could underpin shifts in the GA distribution. Targeting modifiable population risk factors for delivery before 39 weeks GA may provide a useful preterm birth prevention paradigm.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30214 - Obstetrics and gynaecology

Project

—

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Journal of Public Health

ISSN

1101-1262

e-ISSN

1464-360X

Volume of the periodical

28

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

303-309

UT code for WoS article

000429036800020

EID of the result in the Scopus database

2-s2.0-85045903874