External validation of the endometriosis fertility index (EFI) for predicting spontaneous pregnancy after surgery: further considerations on its validity

Garavaglia E, Elisabetta Garavaglia, Luca Pagliardini, Tandoi I, Iacopo Tandoi, Sigismondi C, Cristina Sigismondi, Paola Viganò, Ferrari S, Stefano Ferrari, Massimo Candiani
Gynecologic and obstetric investigation · 2015 · vol. 79(2) , pp. 113–118 · doi:10.1159/000366443 · PMID:25634444 · W2092336982
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The Endometriosis Fertility Index (EFI) score was externally validated as a reliable predictor of both spontaneous and assisted reproductive technology pregnancy outcomes in Italian women undergoing surgery for endometriosis.

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Abstract

BACKGROUND/AIMS: The revised American Society for Reproductive Medicine classification of endometriosis has a limited predictive value for pregnancy after surgery. A tool for predicting spontaneous pregnancy or pregnancy following assisted reproduction technology (ART) represents a clinical need. This study aimed to (i) provide an external validation of the EFI score in predicting pregnancy in infertile Italian endometriosis women; (ii) evaluate the predictive value of EFI score on ART outcome for patients who previously attempted to spontaneously conceive after surgery. METHODS: In 104 women with endometriosis, EFI score was calculated based on a prospective database data. Cumulative pregnancy rates curves were calculated using Kaplan-Meier (K-M) product limit estimate and log-rank test was used to evaluate differences between EFI groups. A receiver operating characteristic (ROC) curve was plotted for EFI as a predictor of ART outcome. RESULTS: Differences in time to non-ART pregnancy for the six EFI groups were statistically significant (log-rank, p = 1.4 × 10(-4)). The area under the curve (AUC) for EFI as ART outcome predictor was 0.75 (95% CI 0.61-0.89, p = 6.2 × 10(-3)), while the best cut-point for pregnancy was 5.5. CONCLUSION: The EFI score is a reliable scoring system to predict non-ART and ART pregnancy outcome after surgery for endometriosis.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Infertility, Female Pregnancy Reproductive Techniques, Assisted Severity of Illness Index Severity of Illness Index Adult Adult Endometriosis Endometriosis Endometriosis Endometriosis Female Female Follow-Up Studies Follow-Up Studies Humans Humans Infertility, Female Infertility, Female

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Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. Outer rings show 2-hop neighbours — papers reached through the immediate citers/citees. [ collapse to 1-hop ]

References (20)

Cited by (37)

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License: CC0 · commercial use OK