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Updated: Feb 5, 2026

Z-Scores for Assessing Ovarian Reserve in Young Patients Undergoing Fertility Preservation
Published on: October 25, 2024
Factors affecting the live-birth rate in women with diminished ovarian reserve undergoing IVF-ET
Yun Huang1, Jingyi Li1, Fang Zhang1
1Key Laboratory of Reproductive Genetics (Ministry of Education), and Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, People's Republic of China.
Purpose:
The occurrence of diminished ovarian reserve (DOR) in women was growing in recent years. Although in vitro fertilization and embryo transfer (IVF-ET) became an effective treatment for DOR, the live-birth (LB) rate remains unsatisfactory. This study aimed to investigate the impact factors of LB rate in women with DOR undergoing assisted reproduction.
Methods:
This was a single-center retrospective cohort study. A total of 2277 IVF-ET or ICSI cycles from 1957 DOR women were analysed. Impact factors of LB rate were explored via Student's t test, Pearson's Chi-square test, and multivariate logistic regression models.
Results:
There were statistically significant differences in maternal age (P < 0.001), duration of infertility (P < 0.001), female body mass index (P = 0.039), first IVF cycle (P = 0.004), poor ovarian response (P < 0.001), paternal age (P < 0.001), total gonadotropin dose (P = 0.010), endometrial thickness (P = 0.021), number of follicles ≥ 14 mm (P = 0.007), number of oocytes retrieved (P < 0.001), number of frozen embryos (P = 0.014), and the stage (P < 0.001) and number (P < 0.001) of embryos transferred between the non-live-birth (NLB) and LB groups. However, only factors of maternal age, the stage and number of embryos transferred remained different after adjusting for potential confounders.
Conclusions:
Maternal age, the stage and number of embryos transferred were independent impact factors affecting the live-birth rate in women with DOR seeking for assisted conception.
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