Table 1 Biological and clinical results in IVF cycles.
Parameter | ≤32 | 33-37 | 38-41 | Total | Statistics |
|---|---|---|---|---|---|
Cycles with clinical pregnancy | 107 | 196 | 156 | 459 | Â |
IVF | 41 | 90 | 71 | 202 | n.s.* |
ICSI | 66 | 106 | 85 | 257 | n.s.* |
Patients with clinical pregnancy | 105 | 182 | 149 | 436 | Â |
Maternal age (mean ± SD) | 30.3 ± 2.4 | 35.7 ± 1.4 | 40.0 ± 1.3 | 35.9 ± 4.0 |  |
IVF attemps (mean) | (1.0) | (1.1) | (1.1) | (1.1) | Â |
Retrieved oocytes°(mean ± SD) | 728 (6.8 ± 3.5) | 1273 (6.5 ± 3.5) | 954 (6.1 ± 3.1) | 2955 (6.4 ± 3.4) | n.s |
Inseminated oocytes°(mean ± SD) | 306 (2.9 ± 0.6) | 569 (2.9 ± 0.6) | 451 (2.9 ± 0.8) | 1326 (2.9 ± 0.7) | n.s |
2 pronucleate zygotes°(mean ± SD) | 240 (2.2 ± 0.8) | 478 (2.4 ± 0.7) | 360 (2.3 ± 0.8) | 1078 (2.3 ± 0.8) | n.s. |
2 pronucleate zygotes°(%) | 78.4 | 84.0 | 79.8 | 81.3 | 0.692 (0.487-0.984)§ |
Cleaved and transferred embryos°(mean ± SD) | 235 (2.2 ± 0.8) | 474 (2.4 ± 0.7) | 353 (2.3 ± 0.8) | 1062 (2.3 ± 0.8) | <0.05** |
Implantation rate°(%) | 107/235 (45.5) | 196/474 (41.3) | 156/353 (44.2) | 459/1062 (43.2) | n.s. |