title: Live delivery outcome after tubal sterilization reversal: a population-based study.
abstract: OBJECTIVE
  To determine the cumulative incidence of live delivery in women who underwent reversal of tubal sterilization.
  
  
  METHODS
  Population-based retrospective cohort study.
  
  
  METHODS
  Hospitals in Western Australia.
  
  
  METHODS
  All women aged 20-44 years, with a history of hospital admission for tubal sterilization, who subsequently underwent reversal of sterilization during the period 1985 to 2009 in Western Australia (n = 1,898).
  
  
  METHODS
  Data regarding reversal of sterilization and prior tubal sterilization were extracted from routinely collected administrative hospital separation records, until commencement of IVF treatment.
  
  
  METHODS
  First live-delivery rates.
  
  
  RESULTS
  There were 969 first live deliveries observed during the study period. The overall cumulative live-delivery rate was 20% (95% confidence interval [CI] 18-23) within the first year after reversal, 40% (95% CI 38-42) at 2 years, 51% (95% CI 48-53) at 5 years, and 52% (95% CI 50-55) at 10 years. The 5-year cumulative live-delivery rate was significantly lower in women who were aged 40-44 years (26%) compared with younger women (aged 20-29, 30-34, and 35-39 years) (50%, 56%, and 51%, respectively).
  
  
  CONCLUSIONS
  Women undergoing reversal of sterilization before they reach age 40 years have at least a 50% chance of delivering a live baby within the next 5 years. Up to that age, there is no significant difference in live deliveries. The live-delivery rate halves after the age of 40 years.
authors.affiliation: Centre for Health Services Research, School of Population Health, The University of Western Australia, Crawley, Western Australia, Australia; School of Paediatrics and Child Health, The University of Western Australia, Crawley, Western Australia, Australia. Electronic address: eva.malacova@uwa.edu.au.
authors.forename: Eva
authors.initials: E
authors.lastname: Malacova
authors.affiliation: Centre for Health Services Research, School of Population Health, The University of Western Australia, Crawley, Western Australia, Australia.
authors.forename: Anna
authors.initials: A
authors.lastname: Kemp-Casey
authors.affiliation: Centre for Health Services Research, School of Population Health, The University of Western Australia, Crawley, Western Australia, Australia.
authors.forename: Alexandra
authors.initials: A
authors.lastname: Bremner
authors.affiliation: School of Women's and Infants Health, The University of Western Australia, Crawley, Western Australia, Australia; Fertility Specialists of Western Australia, Claremont, Western Australia, Australia.
authors.forename: Roger
authors.initials: R
authors.lastname: Hart
authors.affiliation: Centre for Population Health Research, Faculty of Health Sciences, Curtin University, Bentley, Western Australia, Australia.
authors.forename: Louise Maree
authors.initials: LM
authors.lastname: Stewart
authors.affiliation: Centre for Health Services Research, School of Population Health, The University of Western Australia, Crawley, Western Australia, Australia.
authors.forename: David Brian
authors.initials: DB
authors.lastname: Preen
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D050498:Live Birth / Q000453:epidemiology*; D008423:Maternal Age; D008875:Middle Aged; D011247:Pregnancy; D018873:Pregnancy Rate; D012189:Retrospective Studies; D013243:Sterilization Reversal / Q000706:statistics & numerical data*; D013246:Sterilization, Tubal / Q000534:rehabilitation / Q000706:statistics & numerical data; D016896:Treatment Outcome; D014904:Western Australia / Q000453:epidemiology; D055815:Young Adult
keywords: Cohort studies; life tables; live birth; sterilization reversal; tubal sterilization