Blastocyst formation rate for Asians versus Caucasians and within body mass index categories.

Journal of Assisted Reproduction and Genetics
Rucha KhunteValerie Lynn Baker

Abstract

There are well-documented racial and ethnic disparities for in vitro fertilization (IVF) outcomes, including disparities in clinical pregnancy and live birth rate. Obesity has also been associated with an increase in the risk of infertility and reduction in the efficacy of fertility treatment. However, there are limited data regarding the potential effect of race and obesity on in vitro embryo development. The purpose of this study was to determine whether blastocyst formation rates vary with race and body mass index (BMI). This retrospective analysis included 1134 fresh autologous cycles (N = 8266 embryos), which took place from January 2013 to December 2016. Women were categorized as Caucasian, Asian (not Indian), and Indian (South Asian) and by BMI categories (normal, overweight, and obese). Regression analyses were performed using race and BMI as the primary predictor variables and blastocyst formation as the outcome. Compared to Caucasian, the adjusted OR for blastocyst development was 0.85 (95% CI 0.72-1.00) for Asian women and 1.15 (95% CI 0.95-1.38) for Indian women. Women who were overweight (aOR 0.93; 95% CI 0.77-1.12) or obese (aOR 0.92; 95% CI 0.74-1.12) had similar odds of blastocyst formation comparing to women wi...Continue Reading

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