Table 3 Pregnancy and live birth rates per embryo transfer according to age
Age (years) | |||||||
|---|---|---|---|---|---|---|---|
≤29 | 30-34 | 35-39 | 40-44 | ≥45 | Total | pa | |
Fresh embryo transfer, n | 159 | 931 | 1972 | 1428 | 412 | 4902 | - |
Clinical pregnancies, n (%) | 53 (33.3) | 324 (34.8) | 507 (25.7) | 179 (12.5) | 4 (1) | 1067 (21.8) | <0.0001 |
Live births, n (%) | 48 (30.2) | 275 (29.5) | 376 (19.1) | 106 (7.4) | 2 (0.5) | 807 (16.5) | <0.0001 |
Fresh blastocyst transfer, n | 17 | 29 | 25 | 73 | 5 | 149 | - |
Clinical pregnancies, n (%) | 6 (35.3) | 15 (51.7) | 9 (36) | 20 (27.4) | 2 (40) | 52 (34.9) | 0.29 |
Live births, n (%) | 6 (35.3) | 11 (37.9) | 7 (28) | 10 (13.7) | 1 (20) | 35 (23.5) | 0.036 |
Vitrified embryo transfer, n | 13 | 64 | 125 | 153 | 61 | 416 | - |
Clinical pregnancies, n (%) | 5 (38.5) | 33 (51.6) | 38 (30.4) | 18 (11.8) | 2 (3.3) | 95 (22.8) | <0.0001 |
Live births, n (%) | 4 (30.8) | 24 (37.5) | 30 (24) | 12 (7.8) | 0 (0) | 70 (16.8) | <0.0001 |
Vitrified blastocyst transfer, n | 184 | 1024 | 2072 | 1489 | 165 | 4934 | - |
Clinical pregnancies, n (%) | 93 (50.5) | 553 (54) | 998 (48.2) | 471 (31.6) | 33 (20) | 2149 (43.6) | <0.0001 |
Live births, n (%) | 76 (41.3) | 456 (44.5) | 757 (36.5) | 263 (17.7) | 10 (6.1) | 1562 (31.7) | <0.0001 |