A clinical counseling tool predicting supernumerary embryos after a fresh IVF cycle.
Abstract
To identify factors predictive of having supernumerary embryos in a fresh IVF cycle and create a prediction model for clinical counseling. We utilized a multivariable Poisson regression to identify predictive factors and then entered these into a logistic regression model, calculating a risk index for each significant variable. The final model was tested using a receiver operating characteristic curve. A total of 60,616 fresh transfer cycles were reported to the Society for Assisted Reproductive Technology in 2014. Of these, 47.17% produced supernumerary embryos. A multivariate Poisson regression identified factors predictive of having supernumerary embryos, with age and AMH being the most predictive. Clinical prediction models were developed with acceptable and excellent discrimination. 23.5% of our cohort did not achieve a live birth following their fresh transfer and had excess embryos cryopreserved for future attempts. Our study suggests that in a minority of fresh IVF cycles in the USA, the fresh transfer is not successful, and there are excess embryos cryopreserved for future use. The likelihood of excess embryos beyond those that would be transferred can be predicted with satisfactory precision prior to initiation of the...Continue Reading
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