Table 2 Outcome data regarding the patients (n = 336) participating in IVF/ICSI treatment of different age groups.
|  | Age < 35 (n = 213) | Age ≥ 35 (n = 123) | P value |
|---|---|---|---|
Gonadotropin dose (IU) | 1958 ± 23 | 2153 ± 45 | < 0.001 a |
Estradiol levels on the day of hCG administration (pg/ml) | 1976 ± 85 | 1391 ± 92 | < 0.001a |
Number of retrieved oocytes | 12.3 ± 0.5 | 8.3 ± 0.5 | < 0.001a |
Number of transferred embryos | 3.9 ± 0.1 | 3.1 ± 0.2 | < 0.001a |
Number of good embryos | 3.2 ± 0.1 | 2.2 ± 0.2 | < 0.001a |
Cycle number with no oocytes retrieved | 2/213 (0.9%) | 2/123 (1.6%) | 0.626b |
Cycle number with no embryos transferred | 1/211 (0.5%) | 7/121 (5.8%) | 0.004b |
Pregnancy rate (%) | 112/213 (52.6) | 48/123 (39.0) | 0.022c |
Implantation rate (%) | 217/830 (26.1) | 74/386 (19.2) | 0.008c |
Multiple pregnancy rate (%) | 64/112 (57.1) | 20/48 (41.7) | 0.106c |
Live birth rate (%) | 93/213 (43.7) | 40/123 (32.5) | 0.044c |