title: Factors associated with adverse perinatal outcomes for term breech fetuses with planned vaginal delivery.
abstract: OBJECTIVE
  We sought to identify factors associated with adverse perinatal outcomes (APO) among term breech neonates with planned vaginal deliveries.
  
  
  METHODS
  We conducted univariable and multilevel multivariable analysis of the data collected in the multicenter prospective observational study PREsentation et MODe d'Accouchement (PREMODA) in women with planned vaginal delivery giving birth to singleton term breech babies. The end point was a composite set of APO.
  
  
  RESULTS
  Of 2502 women with planned vaginal delivery recruited in the 174 participating centers, 1772 (71%) delivered vaginally. Adverse outcomes were observed in 165 cases (6.59%). After adjustment, the factors associated with them were geographic origin, gestational age <39 weeks at birth, birthweight <10th percentile, and annual number of maternity unit births <1500.
  
  
  CONCLUSIONS
  When strict conditions governed the selection of delivery route and management of labor was rigorous, APO were not associated with any prenatal or peripartum obstetric factors.
authors.affiliation: Institut national de la santé et de la recherche médicale U953, Epidemiological Research Unit on Perinatal Health and Women's Health, Paris, France. elie.azria@bch.aphp.fr
authors.forename: Elie
authors.initials: E
authors.lastname: Azria
authors.forename: Jean-Patrick
authors.initials: JP
authors.lastname: Le Meaux
authors.forename: Babak
authors.initials: B
authors.lastname: Khoshnood
authors.forename: Sophie
authors.initials: S
authors.lastname: Alexander
authors.forename: Damien
authors.initials: D
authors.lastname: Subtil
authors.forename: François
authors.initials: F
authors.lastname: Goffinet
mesh_terms: D000328:Adult; D001946:Breech Presentation; D036861:Delivery, Obstetric / Q000009:adverse effects* / Q000706:statistics & numerical data; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D008423:Maternal Age; D011247:Pregnancy; D011256:Pregnancy Outcome; D011446:Prospective Studies; D012307:Risk Factors