title: Previous cesarean section increases the risk for breech presentation at term pregnancy.
abstract: OBJECTIVE
  The aim of the present study was to estimate the risk for breech presentation in women with singleton pregnancies at-term who had had at least one previous cesarean section (CS) versus at least one previous vaginal delivery.
  
  
  METHODS
  Out of 4269 singleton pregnancies during the study period, 2008 met the inclusion criteria. The history, the number of previous CSs, as well as maternal age, parity, birth weight, gestational age, neonatal sex and placenta previa were used to estimate the risk for breech at term.
  
  
  RESULTS
  The overall incidence of breech presentation was 3.2%, while 20% of the women had a history of at least one previous CS. The rate of breech presentation at term in singleton pregnancies after CS increased two-fold (5.3%) when compared to those with at least one previous vaginal delivery (2.6%), (p = 0.01) [OR 2.08 (95% CI, 1.23-3.52)], while the number of the previous CSs did not correlate with breech presentation (p = NS) [OR 0.86 (95% CI, 0.31-2.4)].
  
  
  CONCLUSIONS
  According to the present study, women with a history of at least one cesarean delivery have an increased risk for breech presentation in the subsequent singleton pregnancy at-term.
authors.affiliation: 4th Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Greece. kalogiannidis@mailbox.gr
authors.forename: I
authors.initials: I
authors.lastname: Kalogiannidis
authors.forename: N
authors.initials: N
authors.lastname: Masouridou
authors.forename: T
authors.initials: T
authors.lastname: Dagklis
authors.forename: S
authors.initials: S
authors.lastname: Masoura
authors.forename: M
authors.initials: M
authors.lastname: Goutzioulis
authors.forename: Y
authors.initials: Y
authors.lastname: Prapas
authors.forename: N
authors.initials: N
authors.lastname: Prapas
mesh_terms: D000328:Adult; D001946:Breech Presentation; D002585:Cesarean Section; D005260:Female; D005865:Gestational Age; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D008423:Maternal Age; D010298:Parity; D011247:Pregnancy; D012189:Retrospective Studies; D012306:Risk; D012307:Risk Factors