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ORIGINAL ARTICLE
Year : 2020  |  Volume : 4  |  Issue : 4  |  Page : 233-238

Prediction of cumulative live birth rate in women aged 40 years and over undergoing In vitro fertilization/intracytoplasmic sperm injection


1 Reproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat.Sen University, Tianhe District, Guangzhou 510275, China
2 Department of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, China

Correspondence Address:
Cong Fang
Reproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen University, Tianhe District, Guangzhou 510275
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2096-2924.305931

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Objective: To investigate cumulative live birth rate (cLBR) per oocyte retrieval in infertile patients aged 40 years and over undergoing their first in vitro fertilization/intracytoplasmic sperm injection cycles and to identify the possible predictors. Methods: A total of 1,613 patients at a university hospital in China from January 2013 to May 2017 were enrolled in this retrospective study. All data for fresh and subsequent frozen-thawed cycles were analyzed. Multivariate logistic regression analysis with stepwise selection of possible predictors for cLBR was performed, and Loess curve was constructed to determine the association between cLBR and the number of oocytes retrieved. Results: cLBR significantly increased with the number of oocytes retrieved and reached up to 75% when > 20 oocytes were retrieved ( P < 0.001). Variables of antral follicle count (AFC) and the number of oocytes retrieved were selected using multiple logistic regression analysis with stepwise selection to predict the significance of cLBR. cLBR demonstrated an obvious upward trend as the number of oocytes retrieval increased in the Loess curve. Conclusions: For patients aged 40 years and over, AFC and the number of oocytes retrieved were two key predictors for cLBR and maximization of ovarian reserve exploitation was pivotal to increase the chance of live birth.


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