| Percentage of blastomere loss | p 1 a | p 2 a | p 3 a | p for trend b | ||
---|---|---|---|---|---|---|---|
0% (n = 803) | ≤ 25% (n = 154) | 26–50% (n = 166) | |||||
Chemical pregnancies (n, %)c | 169(21.1) | 35 (22.7) | 18 (10.8) | 0.641 | 0.002 | 0.004 | 0.018 |
Clinical pregnancies (n, %)d | 145 (18.1) | 28 (18.2) | 15 (9.0) | 0.971 | 0.004 | 0.017 | 0.020 |
Ongoing pregnancies (n, %)e | 120 (14.9) | 26 (16.9) | 12 (7.2) | 0.540 | 0.008 | 0.008 | 0.021 |
Live births (n, % per embryo transfer cycle)f | 114 (14.2) | 25 (16.2) | 10 (6.0) | 0.511 | 0.004 | 0.004 | 0.041 |
Live births (n, % per clinical pregnancy)g | 114 (77.1) | 25 (89.3) | 10 (66.7) | 0.194 | 0.331 | 0.104 | 0.950 |
Ectopic pregnancies (n, %) | 4 (0.5) | 0 (0.0) | 0 (0.0) | 0.380 | 1.000 | NA | 0.219 |
Early miscarriages (n, % per clinical pregnancy) | 25 (17.2) | 2 (7.7) | 3 (17.7) | 0.257 | 0.728 | 0.324 | 0.503 |
Pregnancy termination due to fetal anomaly (n, % per clinical pregnancy) h | 1 (0.7) | 0 (0.0) | 0 (0.0) | 1.000 | 1.000 | NA | 0.531 |