How compliant are in vitro fertilization member clinics in following embryo transfer guidelines? An analysis of 59,689 fresh first in vitro fertilization autologous cycles from 2011 to 2012

Objective To determine whether IVF clinics are compliant with American Society for Reproductive Medicine (ASRM) and Society for Assisted Reproductive Technology (SART) (ASRM/SART) guidelines and assess the multiple pregnancy outcomes according to the number of embryos transferred. Design Retrospective cohort study. Setting Not applicable. Patient(s) Data from 59,689 fresh first autologous IVF cycles from the 2011–2012 SART registry. Intervention(s) None. Main Outcome Measure(s) Percentage of compliant cycles, multiple pregnancy rate (PR). Result(s) Between 2011 and 2012, a total of 59,689 fresh first autologous cycles were analyzed. Among cleavage-stage ET cycles, the noncompliance rate ranged from 10%–27.4% depending on the age group. The multiple PR was significantly increased in noncompliant cycles involving patients