Related Experiment Video
Updated: Feb 11, 2026

Characterization and Functional Prediction of Bacteria in Ovarian Tissues
Published on: October 23, 2021
Predicting live birth for poor ovarian responders: the PROsPeR concept
Philippe Lehert1, Wai Chin2, Joan Schertz2
1Faculty of Economics, UCL Mons, Chaussée de Binche 151, Mons 7000, Belgium; Faculty of Medicine, The University of Melbourne, Melbourne, Australia.
A new model predicts live birth for poor ovarian responders (PORs) receiving recombinant human FSH (r-hFSH). The PROsPeR tool offers a simple, precise method for clinical practice, outperforming existing models.
Area of Science:
- Reproductive Endocrinology
- Infertility Treatment
- Clinical Prediction Modeling
Background:
- Existing live-birth predictive models demonstrate poor performance and are rarely utilized.
- No predictive models specifically address poor ovarian responders (PORs).
Purpose of the Study:
- To develop a clinically applicable tool for predicting live birth in PORs undergoing treatment with recombinant human FSH (r-hFSH).
Main Methods:
- Developed a predictive model using data from the ESPART trial for PORs receiving r-hFSH.
- Created separate models for patients with prior assisted reproductive technology (ART) cycles and ART-naïve patients.
- Derived the simplified Poor Responder Outcome Prediction (PROsPeR) concept.
Main Results:
- The PROsPeR model categorizes PORs into three risk scores, with live-birth rates decreasing across categories.
- Achieved a superior area under the receiver operating characteristic curve (AUC_ROC) of 0.84 (0.79 to 0.88) when adequately calibrated.
- Observed lower discrimination (AUC_ROC 0.66-0.72) when applied to broader patient groups or those receiving additional treatments.
Conclusions:
- The PROsPeR model is specific for PORs receiving r-hFSH.
- Offers an optimal balance of precision and simplicity for routine clinical use.
- Represents the best available tool for predicting live birth in this patient population.
Related Concept Videos
Birth Control Methods
Self-Concept
Infancy and Emerging Recognition
During infancy, self-concept is virtually nonexistent. Babies do not distinguish themselves as separate entities and often mistake their...
Concepts and Prototypes
The brain organizes this information using concepts, which are mental categories grouping linguistic data,...
Predicting Molecular Geometry
Formula Mass and Mole Concepts of Compounds
Concept of Pressure at a Point
In a fluid at rest, pressure acts equally in...

