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. 2023 Jun 19;31(8):918–924. doi: 10.1038/s41431-023-01404-x

Table 3.

Clinical data on performed PGT cycles and pregnancy outcome (n = 67).

Cycles n
Cycles started 143
Cycles to oocyte retrieval 131
Cycles to embryo biopsy 131
 Cycles with blastomere biopsy 106
 Cycles with trophectoderm biopsy 25
Cycles to embryo transfer 111
Embryo biopsies and analysis n (%)
Embryos biopsied 746
 Blastomere biopsy 698
 Trophectoderm biopsy 48
Embryos with diagnosis 595 (79.8)
 Number of embryos unaffected 295 (49.6)
 Number of embryos affected 300 (50.4)
Embryos inconclusive or aberrant 151 (20.2)
Embryo transfers n
Embryos transferred 174
 Fresh embryo transfers 91
 Frozen embryo transfers 83
Pregnancies and births n
hCG positive 61
Ongoing pregnancies 42
Live birth deliveries 41
Babies 42 (40 singletons, 1 twins)
 No congenital anomalies 38
 Congenital anomalies 2
 Missing 2
Outcome missing 1
Outcome %
Pregnancy rate
 Per embryo transfer 24.1
 Per fresh embryo transfer 30.8
 Per frozen embryo transfer 16.9
Live birth rate
 Per embryo transfer 23.6

PGT preimplantation genetic testing, hCG human chorionic gonadotropin.