NEW SCIENTIST: Fertility clinics are fudging IVF stats to look more successful

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But there’s a problem with the new measure, says Jack Wilkinson at the University of Manchester, UK – it ignores women who don’t get as far as embryo transfer, perhaps because of a problem with their eggs or embryos.Wilkinson says this could give clinics an incentive to offer aggressive drug stimulation treatments, which may up the risk of ovarian hyperstimulation syndrome. This would improve success rates under HFEA criteria, because if it fails, no embryo transfer takes place.