![]() f Includes cycles in which no eggs or embryos were transferred or frozen, among all cycles in which eggs were retrieved and all frozen cycles. ![]() ![]() e Includes cycles in which no eggs were retrieved among all cycles in which egg retrieval was expected. d Patients of all ages are combined because previous data show that a patient’s age does not substantially affect success when using a donor’s eggs or donated embryos. Success rates for cycles using a donor's eggs or donated embryos are calculated by using all transfers started in 2019. Success rates for cycles using a patient's own eggs are calculated by using all cycles started in 2018 with intent to retrieve a patients's eggs and all transfers of these eggs, or embryos created from these eggs, started within 12 months of the start of the retrieval cycle. Multiple-infant births (for example, twins) with at least one live born infant are counted as one live birth. c A live birth is defined as the delivery of one or more infants with any sign of life. Reported sample size of 1 through 4 have been suppressed due to small sample size. b Fractions are used when the denominator is less than 20. ART = Assisted Reproductive Technology ICSI = intracytoplasmic sperm injection PGT = preimplantation genetic testing (diagnosis or screening) a Numbers and percentages exclude 0 cycle(s) that were evaluating new procedures.
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