title: Can the Society for Assisted Reproductive Technology Clinic Outcome Reporting System (SART CORS) be used to accurately report clinic total reproductive potential (TRP)?
abstract: OBJECTIVE
  To assess whether total reproductive potential (TRP), the chance of a live birth from each fresh cycle (fresh cycle plus frozen transfers), could be calculated from the national Society for Assisted Reproductive Technology Clinic Outcome Reporting System (SART CORS) database and whether information not available in SART CORS resulted in significant changes to the TRP calculation.
  
  
  METHODS
  Retrospective study using SART CORS and clinic data.
  
  
  METHODS
  Three assisted reproductive technology clinics.
  
  
  METHODS
  Women undergoing ART.
  
  
  METHODS
  None.
  
  
  METHODS
  Two- and three-year TRPs for 2005 and 2006 were calculated according to patient age at cycle start by linking fresh to frozen cycles up to first live birth. Clinic records were used to adjust for (remove) frozen cycles that used more than one fresh cycle as a source of embryos and for any embryos donated to other patients or research or shipped to another facility before a live birth.
  
  
  RESULTS
  TRP was higher than fresh per-cycle rates for most ages at all clinics, although accuracy was compromised when there were fewer than 20 cycles per category. Two- and 3-year TRPs differed in only 2 of 24 calculations. Adjusted TRPs differed less than three percentage points from unadjusted TRPs when volume was sufficient.
  
  
  CONCLUSIONS
  Clinic TRP can be calculated from SART CORS. Data suggest that calculations of clinic TRP from the national dataset would be meaningful.
authors.affiliation: Department of Obstetrics and Gynecology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire 03756, USA. judy.stern@dartmouth.edu
authors.forename: Judy E
authors.initials: JE
authors.lastname: Stern
authors.forename: Timothy N
authors.initials: TN
authors.lastname: Hickman
authors.forename: Donna
authors.initials: D
authors.lastname: Kinzer
authors.forename: Alan S
authors.initials: AS
authors.lastname: Penzias
authors.forename: G David
authors.initials: GD
authors.lastname: Ball
authors.forename: William E
authors.initials: WE
authors.lastname: Gibbons
mesh_terms: D000328:Adult; D015925:Cryopreservation; D019992:Databases as Topic; D004624:Embryo Transfer; D005260:Female; D006801:Humans; D050498:Live Birth; D008297:Male; D010043:Outcome and Process Assessment, Health Care; D011247:Pregnancy; D011272:Pregnancy, Multiple; D019984:Quality Indicators, Health Care; D027724:Reproductive Techniques, Assisted / Q000009:adverse effects; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D012955:Societies, Medical; D013997:Time Factors; D016896:Treatment Outcome; D014481:United States