Journal of Human Reproductive Science
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ORIGINAL ARTICLE Table of Contents   
Year : 2022  |  Volume : 15  |  Issue : 3  |  Page : 284-292
Cumulative live birth rate per oocyte aspiration in artificial reproduction technology: A retrospective observational study of the association between maternal age and the number of oocytes retrieved in an Indian population

Department of Reproductive Medicine, Gunasheela Surgical and Maternity Hospital, Bengaluru, Karnataka, India

Correspondence Address:
Dr. Mahesh Ashwini
Gunasheela Surgical and Maternity Hospital, No. 1, Dewan Madhava Rao Road, Opp. M. N. Krishna Rao Park, Basavanagudi, Bengaluru - 560 004, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jhrs.jhrs_123_22

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Background: The association between cumulative live birth rate (CLBR) and oocyte aspiration in the context of maternal age is not well understood in the Indian population. Aims: To find the relationship between CLBR and a single oocyte aspiration. Settings and Design: This is a retrospective study analysing the data of 1989 women who underwent in vitro fertilisation (IVF) between January 2015 and December 2019, at Gunasheela Surgical and Maternity Hospital, India. Materials and Methods: Participants were divided into two groups based on age: ≤35 (group I, n = 1665) and >35 (Group II, n = 324). CLBR per single oocyte aspiration in fresh and subsequent three frozen embryo transfer cycles was estimated. Statistical Analysis Used: Logistic regression analysis was used to show the likelihood of pregnancy rate, and CLBR per aspiration after treatment was represented as odd's ratios (OR) with 95% confidence intervals. Results: Maximal CLBR for Groups I and II was 81.25% with >25 oocytes and 75% with 16–20 oocytes, respectively. In the fresh ET cycle, maximal pregnancy and live birth rates were observed in 6–10 oocytes for Group I (54% and 41%) and in 16–20 oocytes for Group II (75% and 75%). The ORs for pregnancy rate (P = 0.01) and CLBR (P = 0.007) increased with an increase in the number of oocytes retrieved. The ORs for pregnancy rate and CLBR for Group II were 0.68 (P = 0.002) and 0.58 (P = 0.00002), respectively as compared to Group I. Optimal oocytes required to achieve positive IVF outcomes in fresh/frozen ET cycles were low in Group I (6–10 oocytes), but higher in Group II (16–20 oocytes). Conclusion: Robust positive relationship was observed between the number of oocytes retrieved and CLBR in women of both age groups.

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