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J Gynecol Obstet Biol Reprod (Paris). 2015 Oct;44(8):723-31. doi: 10.1016/j.jgyn.2015.06.010. Epub 2015 Jul 2.

[Epidemiology of preterm birth: Prevalence, recent trends, short- and long-term outcomes].

[Article in French]

Author information

1
Équipe de recherche en épidémiologie obstétricale, périnatale et pédiatrique, Inserm U1153, centre de recherche d'épidémiologie et statistique, Sorbonne Paris-Cité, bâtiment Port-Royal, 53, avenue de l'Observatoire, 75014 Paris, France; DHU risques et grossesse, 53, avenue de l'Observatoire, 75014 Paris, France. Electronic address: heloise.torchin@inserm.fr.
2
Équipe de recherche en épidémiologie obstétricale, périnatale et pédiatrique, Inserm U1153, centre de recherche d'épidémiologie et statistique, Sorbonne Paris-Cité, bâtiment Port-Royal, 53, avenue de l'Observatoire, 75014 Paris, France; URC-CIC P1419, groupe hospitalier Cochin-Hôtel-Dieu, Assistance publique-Hôpitaux de Paris, 75014 Paris, France; DHU risques et grossesse, 53, avenue de l'Observatoire, 75014 Paris, France.
3
Service de médecine et réanimation néonatales de Port-Royal, groupe hospitalier Cochin-Hôtel-Dieu, Assistance publique-Hôpitaux de Paris, université Paris Descartes, 53, avenue de l'Observatoire, 75014 Paris, France; DHU risques et grossesse, 53, avenue de l'Observatoire, 75014 Paris, France.
4
Équipe de recherche en épidémiologie obstétricale, périnatale et pédiatrique, Inserm U1153, centre de recherche d'épidémiologie et statistique, Sorbonne Paris-Cité, bâtiment Port-Royal, 53, avenue de l'Observatoire, 75014 Paris, France; Maternité Port-Royal, groupe hospitalier Cochin-Hôtel-Dieu, Assistance publique-Hôpitaux de Paris, université Paris Descartes, 53, avenue de l'Observatoire, 75014 Paris, France; DHU risques et grossesse, 53, avenue de l'Observatoire, 75014 Paris, France.

Abstract

Every year, approximately 15 million babies are born preterm worldwide (before 37 completed weeks of gestation), putting the global preterm birth rate at 11%; they are about 60,000 in France. About 85% of these births are moderate (32-33 weeks) to late preterm babies (34-36 weeks), 10% are very preterm babies (28-31 weeks) and 5% are extremely preterm babies (< 28 weeks). Though neonatal mortality rates are dropping, they remain high and are largely determined by gestational age at birth (over 10% mortality for infants born before 28 weeks, 5-10% at 28-31 weeks and 1-2% at 32-34 weeks). Severe neonatal morbidity and disabilities during childhood are also frequent and vary with gestational age. For example, the risk of motor or cognitive impairment is 2 to 3 times higher among children born between 34 and 36 weeks than among children born full-term. Therefore, every preterm baby must be carefully monitored. Recent cohort studies have focused on extremely preterm births; however, awareness of potential outcome and prognosis of all preterm babies is a crucial step for health professionals caring for these children. Huge disparities exist between high- and low-income countries, but also among high-income countries themselves.

KEYWORDS:

Epidemiology; Morbidité à court et moyen terme; Preterm birth; Prématurité; Short- and long-term morbidity; Survie; Survival; Épidémiologie

PMID:
26143095
DOI:
10.1016/j.jgyn.2015.06.010
[Indexed for MEDLINE]
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