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  • PMID: 27068755 was deleted because it is a duplicate of PMID: 28403953
J Gynecol Obstet Hum Reprod. 2017 Jan;46(1):19-28. doi: 10.1016/j.jgyn.2016.02.010. Epub 2016 Apr 5.

Risk factors of preterm birth in France in 2010 and changes since 1995: Results from the French National Perinatal Surveys.

Author information

1
Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé), Center for Epidemiology and Statistics, Sorbonne Paris Cité, DHU Risks in pregnancy, Paris Descartes University, 75014Paris, France.
2
Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé), Center for Epidemiology and Statistics, Sorbonne Paris Cité, DHU Risks in pregnancy, Paris Descartes University, 75014Paris, France; Maternité Port-Royal, Paris Descartes University, Cochin Broca Hôtel-Dieu Hospital, AP-HP, DHU Risks in pregnancy, 75014 Paris, France.
3
Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé), Center for Epidemiology and Statistics, Sorbonne Paris Cité, DHU Risks in pregnancy, Paris Descartes University, 75014Paris, France. Electronic address: beatrice.blondel@inserm.fr.

Abstract

OBJECTIVES:

To investigate risk factors of total, spontaneous and induced preterm birth in 2010 and differences between 1995 and 2010.

MATERIAL AND METHODS:

The national perinatal surveys are based on a representative sample of births in France. We selected live-born singletons (n=14,326 in 2010 and 12,885 in 1995) and used multiple regression analyses to calculate adjusted odds ratios (aOR) for maternal sociodemographic characteristics, obstetric history, prenatal care and smoking.

RESULTS:

The main risk factors in 2010 were parity 1 compared to parity 2 (aOR=1.9 [95% CI 1.5-1.3]), previous preterm delivery (aOR=6.6 [5.0-8.7]), pre-pregnancy body mass index<18.5 compared to 18.5-24.9kg/m2 (aOR=1.7 [1.4-2.2]), level of education completed: high school or less, inadequate prenatal care and cannabis use. Most risk factors of spontaneous and induced preterm births were similar. Compared to 1995, maternal age≥35 years and previous induced abortion were no longer associated with preterm birth in 2010.

CONCLUSION:

Identified risk factors for preterm birth in France in 2010 agree with the literature. Increases in baseline rates for maternal age and medically induced abortions may explain changes in certain preterm birth risk factors.

KEYWORDS:

Accouchement; Delivery; Enquête nationale périnatale; Facteurs de risque; France; National perinatal surveys; Preterm birth; Prématurité; Risk factors

PMID:
28403953
DOI:
10.1016/j.jgyn.2016.02.010

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