Somayeh Ghiasi Hafezi - Department of Applied Mathematics, Ferdowsi University of Mashhad, Mashhad, Iran
Maryam Pourganji - Department of Biostatistics, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
Mark Ghamsary - Department of Biostatistics and Epidemiology, Loma Linda University, School of Public Health, California, USA
Farnaz Aghadavod - School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
Fatemeh Habibian - Student Research Committee, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
Mana Mosannen Mozaffari - School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
Sepehr Metanat - Students' Scientific Research Center (SSRC), School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
Maryam Eftekhar - Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran

Background & Objective: Polycystic ovary syndrome (PCOS) is one of the most common causes of infertility in women worldwide. In vitro fertilization (IVF) is a method used to increase the chance of fertilization. This study was conducted with aim to assess the factors associated with IVF success in women with PCOS.Materials & Methods: This retrospective study was performed on women aged ۱۸ to ۴۶ years with PCOS undergoing IVF in the Infertility Research and Clinical Center, Yazd, Iran, from April ۲۰۱۶ to February ۲۰۱۷. The success of IVF was evaluated in two stages with a β-hCG blood test and ultrasound imaging. The variables of age, number of total embryos, quality of embryos, fertilization rate, number of transferred embryos, and endometrial thickness were measured.Results: In this study, ۶۰۰ women were included. Of these, ۲۱۳ and ۱۴۴ patients had positive pregnancy by β-hCG blood test and ultrasound imaging, respectively. The number of total embryos (OR=۱.۸۸) and A-quality embryos (OR=۱.۸۱) were significantly associated with positive β-hCG test. Regarding pregnancy confirmation by ultrasound imaging, A-quality embryo (OR=۳.۷۵), and B-quality embryo (OR=۲.۶۸) had a significant relationship with fertilization (OR=۸.۶۳).Conclusion: Age, the quality of embryos and fertilization rate can predict IVF success in PCOS patients. However, no significant relationship was found between endometrial thickness and the number of transferred embryos and pregnancy response. Further studies are needed to obtain more understanding in this regard.

Assisted Reproductive Techniques, infertility, In vitro fertilization, Polycystic Ovary Syndrome