Table 2.
Pregnancy rates following IVF–ET using minimal stimulation protocols in patients with normal day 3 serum FSH
| Age ≤35 | Age 36–39 | Age 40–42 | Age ≥43 | |
|---|---|---|---|---|
| # Retrievals | 205 | 166 | 198 | 250 |
| # Transfers | 149 | 117 | 97 | 119 |
| # Follicles | 2,626 | 988 | 815 | 603 |
| # Eggs retrieved | 1,795 | 739 | 574 | 414 |
| # M retrieved | 1,391 | 538 | 483 | 344 |
| # Insemination | 1,521 | 612 | 512 | 378 |
| # Fertilized | 1,023 | 406 | 349 | 238 |
| % Fertilized | 67.3 | 66.3 | 68.2 | 63.0 |
| # Cryopreserved | 578 | 129 | 128 | 43 |
| # Pregnancies | 79 | 44 | 28 | 12 |
| % Pregnant/trans | 53.0 | 37.6 | 28.9 | 10.1 |
| # Clinical | 72 | 37 | 21 | 7 |
| % Clinical/trans | 48.3 | 31.6 | 21.6 | 5.9 |
| # Chemical | 6 | 6 | 5 | 5 |
| # Ectopic | 1 | 1 | 2 | 0 |
| # Delivered | 68 | 34 | 14 | 4 |
| % Delivered/trans | 45.6 | 29.1 | 14.4 | 3.4 |
| # SAB/TAB/FD | 7 | 5 | 7 | 4 |
| % SAB/clin. preg | 9.7 | 13.5 | 33.3 | 57.1 |
| # Deliveries/ongoing | 65 | 32 | 14 | 3 |
| % Delivered/ongoing | 43.6 | 27.4 | 14.4 | 2.5 |
| # Embryos transferred | 336 | 231 | 193 | 180 |
| Average # ET | 2.3 | 2.0 | 2.0 | 1.5 |
| # Sacs implanted | 105 | 51 | 27 | 7 |
| Implantation rate (%) | 31.3 | 22.1 | 14.0 | 3.9 |