"Implantation rates" refers to the likelihood or success rate of a fertilized egg attaching or embedding itself into the lining of the uterus during pregnancy. Full definition
A recent review of studies concluded that sex during IVF treatment improves implantation rates by 23 per cent. (newscientist.com)
Wells points out that all the women he selected for the trial were producing embryos that looked outwardly healthy, so this might help explain the high implantation rate in both groups. (newscientist.com)
One of the first to focus on the number of chromosome sets (ploidy) and implantation rate of D7 embryos, the study provides the largest data set available on pregnancy outcomes after transfer of D7 blastocysts (embryos at an early stage of development). (pacificfertilitycenter.com)