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. 2021 Jul 23;10(15):3254. doi: 10.3390/jcm10153254

Table 4.

Clinical outcomes of T0 and T90 cycles.

T0 T90 Unadjusted p-Value Adjusted p-Value 1
Cancelled embryo transfer (%) 9/77 (12) 3/77 (4) 0.068 0.614
Absence of fertilized oocytes (%) 4/77 (5) 0 0.048 0.476
Absence of viable embryos (%) 3/77 (4) 0 0.077 0.618
Delayed embryo transfer (freeze-all) (%) 2/77 (3) 3/77 (4) 0.736 0.974
N transferred embryos 1.8 ± 0.6 1.5 ± 0.6 0.022 0.240
Cycles with day 2–3 ET 65/68 (96%) 45/74 (61%) <0.0001 <0.0001
Implantation (%) 2/124 (2%) 15/85 (18%) <0.0001 <0.0001
Pregnancy (%) 2/65 (3%) 15/45 (33%) 0.0001 0.001
Live-birth rate (%) 0/124 (0%) 13/83 (16%) 2 <0.0001 <0.0001
Miscarriage (%) 2/2 (100%) 0/15 (0%) <0.0001 <0.0001
Cycles with day 5 ET 3/68 (4%) 29/73 (40%) <0.0001 <0.0001
Implantation (%) 0/4 (0%) 10/32 (31%) 0.475 0.974
Pregnancy (%) 0/3 (0%) 10/29 (34%) 0.577 0.974
Live-birth rate (%) 0/4 (0%) 10/32 (31%) 0.475 0.974
Miscarriage (%) 0% 0/10 (0%) -
N ET in freeze–thaw cycles 3 9
Implantation (%) 1/4 (25%) 4/9 (44%) 0.974 0.974
Pregnancy (%) 1/3 (3%) 4/9 (44%) 0.551 0.974
Live-birth (%) 0/1 (0%) -/9 3 -
Miscarriage (%) 1/1 (100%) 1/4 (25%) 0.819 0.974
Cumulative pregnancy rate per cycle (%) 1/71 (2%) 29/83 (35%) <0.0001
Cumulative live-birth rate per cycle (%) 0/132 (0%) 23/124 (19%) 4 <0.0001 <0.0001
Cumulative miscarriage (%) 3/3 (100%) 1/29 (3%) 0.0001 0.001
Cumulative pregnancy rate per couple (%) 1/77 (1%) 29/77 (38%) <0.0001 <0.0001
Cumulative live-birth rate per couple (%) 0/77 (0%) 23/77 (30%) 4 <0.0001 <0.0001

ET, embryo transfer. 1 Alpha value adjusted by Hochberg stepwise test; 2 n. 2 ongoing clinical pregnancies; 3 n. 3 ongoing clinical pregnancies; 4 n. 5 ongoing clinical pregnancies.