title: Presentation to delivery interval in women with early preterm delivery presenting with preterm labor: the effect of gestational age.
abstract: BACKGROUND
  To evaluate the association between gestational age at presentation and interval to delivery in women with early spontaneous preterm delivery (PTD).
  
  
  METHODS
  A retrospective cohort study of women who presented with threatened preterm labor (tPTL) and intact membranes and had a spontaneous PTD <34 weeks in a university-affiliated hospital (2009-2015). The interval from presentation to delivery was compared between different gestational age subgroups.
  
  
  RESULTS
  Of 67 550 deliveries during the study period, 252 met inclusion criteria. This cohort was divided to three gestational age subgroups at presentation: 24-286/7weeks (n = 83), 29-316/7weeks (n = 61) and 32-336/7weeks (n = 108). Median time from presentation to delivery was 24.5 h. An inverse relation was observed between gestational age at presentation and admission-delivery interval (group A: 74.7 h, group B: 21.0 h, group C: 14.0 h, p < 0.001).
  
  
  CONCLUSIONS
  Gestational age at presentation is inversely related to admission-delivery interval in women with tPTL and intact membranes.
authors.affiliation: a Helen Schneider Hospital for Women, Rabin Medical Center , Petach Tikva , Israel.|b Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel , and.
authors.forename: Eran
authors.initials: E
authors.lastname: Ashwal
authors.affiliation: b Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel , and.|c Lis Maternity Hospital, Tel Aviv Sourasky Medical Center , Tel Aviv , Israel.
authors.forename: Shiri
authors.initials: S
authors.lastname: Shinar
authors.affiliation: a Helen Schneider Hospital for Women, Rabin Medical Center , Petach Tikva , Israel.|b Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel , and.
authors.forename: Avital
authors.initials: A
authors.lastname: Wertheimer
authors.affiliation: a Helen Schneider Hospital for Women, Rabin Medical Center , Petach Tikva , Israel.|b Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel , and.
authors.forename: Luciena
authors.initials: L
authors.lastname: Reina
authors.affiliation: a Helen Schneider Hospital for Women, Rabin Medical Center , Petach Tikva , Israel.|b Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel , and.
authors.forename: Hadas
authors.initials: H
authors.lastname: Miremberg
authors.affiliation: a Helen Schneider Hospital for Women, Rabin Medical Center , Petach Tikva , Israel.|b Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel , and.
authors.forename: Amir
authors.initials: A
authors.lastname: Aviram
authors.affiliation: b Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel , and.|c Lis Maternity Hospital, Tel Aviv Sourasky Medical Center , Tel Aviv , Israel.
authors.forename: Yariv
authors.initials: Y
authors.lastname: Yogev
authors.affiliation: b Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel , and.|c Lis Maternity Hospital, Tel Aviv Sourasky Medical Center , Tel Aviv , Israel.
authors.forename: Liran
authors.initials: L
authors.lastname: Hiersch
mesh_terms: D000328:Adult; D005260:Female; D005322:Premature Rupture of Fetal Membranes / Q000453:epidemiology*; D005865:Gestational Age; D006801:Humans; D007557:Israel / Q000453:epidemiology; D011247:Pregnancy; D047928:Premature Birth / Q000453:epidemiology*; D012189:Retrospective Studies; D055815:Young Adult
keywords: Preterm delivery; gestational age; interval to delivery; threatened preterm labor