title: Live birth rates and birth outcomes by diagnosis using linked cycles from the SART CORS database.
abstract: OBJECTIVE
  This study uses linked cycles of assisted reproductive technology (ART) to examine cumulative live birth rates, birthweight, and length of gestation by diagnostic category.
  
  
  METHODS
  We studied 145,660 women with 235,985 ART cycles reported to the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System during 2004-2010. ART cycles were linked to individual women by name, date of birth, social security number, partner's name, and sequence of ART treatments. The study population included the first four autologous oocyte cycles for women with a single diagnosis of male factor, endometriosis, ovulation disorders, diminished ovarian reserve, or unexplained infertility. Live birth rates were calculated per cycle, per cycle number (1-4), and cumulatively. Birthweight and length of gestation were calculated for singleton births.
  
  
  RESULTS
  Within each diagnosis, live birth rates were highest in the first cycle and declined with successive cycles. Women with diminished ovarian reserve had the lowest live birth rate (cumulative rate of 28.3 %); the live birth rate for the other diagnoses were very similar (cumulative rates from 62.1 % to 65.7 %). Singleton birthweights and lengths of gestation did not differ substantially across diagnoses, ranging from 3,112 to 3,286 g and 265 to 270 days, respectively. These outcomes were comparable with national averages for singleton births in the United States (3,296 g and 271 days).
  
  
  CONCLUSIONS
  Women with the diagnosis of diminished ovarian reserve had substantially lower live birth rates. However, singleton birthweights and lengths of gestation outcomes were similar across all other diagnoses.
authors.affiliation: Obstetrics and Gynecology, Geisel School of Medicine at Dartmouth, Lebanon, NH, 03756, USA, judy.e.stern@dartmouth.edu.
authors.forename: Judy E
authors.initials: JE
authors.lastname: Stern
authors.forename: Morton B
authors.initials: MB
authors.lastname: Brown
authors.forename: Ethan
authors.initials: E
authors.lastname: Wantman
authors.forename: Suleena Kansal
authors.initials: SK
authors.lastname: Kalra
authors.forename: Barbara
authors.initials: B
authors.lastname: Luke
mesh_terms: D000328:Adult; D001723:Birth Rate; D016208:Databases, Factual; D005260:Female; D006801:Humans; D050498:Live Birth; D008297:Male; D011247:Pregnancy; D011256:Pregnancy Outcome; D016649:Primary Ovarian Insufficiency / Q000175:diagnosis*; D027724:Reproductive Techniques, Assisted; D014481:United States