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. 2020 Aug 27;15(9):1279–1286. doi: 10.2215/CJN.03550320

Table 3.

Preimplantation genetic testing and pregnancy outcomes

Patient Category n (%) Median per Couple of Cumulative Cycles (Interquartile Range)
Couples with at least one preimplantation genetic testing cyclea 43 (44)
 Cycles with oocyte retrieval 79 2 (1)
 Embryos for biopsy 537 10 (14)
  Of which embryos genetically unaffected and suitable for transferb 190 (35) 3 (5)
 Couples with one or more pregnancy going >12-wk gestational age 31 (72) 1 (1)
 Couples with one or more unaffected live births 28
  Couples with one unaffected live birth 24 (56) N/A
  Couples with more than unaffected live birth 4 (9) N/A
 Duration from referral to first live birth, yr N/A 2 (1)
Couples not proceeding with preimplantation genetic testing 37 (38)
Pregnancies without preimplantation genetic testing going >12-wk gestational age 19 (49) N/A
Terminations of pregnancy after diagnosis of affected fetus (either with fetal ultrasound or invasive prenatal diagnostics) 3 (8) N/A
Live birthsc 15 (41) N/A
  Of which known to be affected 4 (27) N/A
  Of which not affected 4 (27)
  Of which affected status unknownd 7 (47)
Couples waiting for validation of the single-cell genetic test on June 1, 2019 9 (9) N/A
Couples not yet decided on June 1, 2019 9 (9) N/A

N/A, not applicable.

a

Including couples not yet finished with the maximum of three reimbursed cycles on June 1, 2019.

b

In 2%–3%, embryo quality after thawing was too poor to perform the genetic test; thus, they were not suitable for testing and transfer.

c

One of 19 pregnancies going >12-wk gestational age resulted in a midtrimester loss.

d

Not all have received genetic testing due to the patient being a minor.