Influence of Donor, Recipient, and Male Partner Body Mass index on Pregnancy Rates in Oocyte Donation Cycles

A high body mass index (BMI) has been shown to associate with negative reproductive outcomes. Women with high BMI have in general lower chances of getting pregnant as well as higher risk of pregnancy complications. Several studies have described in the past the relationship between high BMI and the pregnancy outcome, however, some of them have a small sample size or fail to control for variables associated with a diminished probability of pregnancy. In the present study, we aim to analyze the role of the BMI of all parties involved in oocyte donation cycles (that is: the oocyte donor, the recipient woman, and the male partner) on pregnancy outcomes. This study includes 1092 oocyte donation cycles. Inclusion criteria were: fertilization by ICSI, frozen semen, transfer of 2 embryos at day 3 of in vitro development. For statistical analysis, BMI was divided in: low weight (