Predictors of success following IVF.

The last few decades have witnessed a rise in the global uptake of in vitro fertilization (IVF). To ensure optimal use of this technology, it is important for patients and clinicians to have access to tools which can provide accurate estimates of treatment success and understand the contribution of key clinical and laboratory parameters which influence the chance of conception following IVF. The focus of this review is to identify key predictors of IVF success and assess their impact in terms of live birth rates. We have identified eleven predictors that consistently feature in currently available prediction models, including age, duration of infertility, ethnicity, body mass index (BMI), antral follicle count, previous pregnancy history, cause of infertility, sperm parameters, number of oocytes collected, morphology of transferred embryos, and day of embryo transfer.