Can the Society for Assisted Reproductive Technology Clinic Outcome Reporting System (SART CORS) be used to accurately report clinic total reproductive potential (TRP)?

Capsule:
Little difference was seen between the total reproductive potential calculations from SART CORS data and from additional data obtained at 3 clinics.

Authors:
Judy E. Stern, Ph.D., Timothy N. Hickman, M.D., Donna Kinzer, M.S., Alan S. Penzias, M.D., G. David Ball, Ph.D., William E. Gibbons, M.D.
Volume 97, Issue 4 , Pages 886-889, April 2012

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.

Design:
Retrospective study using SART CORS and clinic data.

Setting:
Three assisted reproductive technology clinics.

Patient(s):
Women undergoing ART.

Intervention(s):
None.

Main Outcome Measure(s):
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.

Result(s):
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.

Conclusion(s):
Clinic TRP can be calculated from SART CORS. Data suggest that calculations of clinic TRP from the national dataset would be meaningful.

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