Performance of ovarian response prediction index (ORPI) in predicting ovarian response and livebirth in the in-vitro fertilisation cycle using a standard stimulation with corifollitropin alpha in a GnRH antagonist protocol
- 12 August 2020
- journal article
- research article
- Published by Taylor & Francis Ltd in Human Fertility
- Vol. 25 (2), 377-383
- https://doi.org/10.1080/14647273.2020.1805517
Abstract
The objective of this study was to evaluate the performance of ovarian response prediction index (ORPI) in predicting ovarian response and livebirth of women undergoing their first in-vitro fertilisation (IVF) cycle. This is a retrospective analysis of 285 women from 2013 to 2016. The outcome measures were area (AUC) under the receiver-operator characteristic (ROC) curves for prediction of excessive and poor response, livebirth in the fresh cycle and cumulative livebirth. The ORPI was significantly correlated with the oocyte number. For prediction of excessive response, AUC for ORPI was comparable to AMH and significantly higher than AFC and female age. At a cut-off of 0.42, ORPI has a sensitivity and specificity of 84% and 77% respectively for prediction of excessive response. For prediction of poor response, AUC for ORPI was significantly higher than AFC, AMH and female age. At a cut-off of 0.12, ORPI has a sensitivity of 69% and specificity of 89% respectively for prediction of poor response. For prediction of livebirth, AUCs of ORPI were not significantly different from AFC and female age. Therefore, ORPI is not a good predictor of livebirth. Its prediction of excessive and poor ovarian response is comparable to that of serum AMH.Keywords
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