Table 1 Results of oocyte retrieval according to age
Age (years) | |||||||
|---|---|---|---|---|---|---|---|
≤29 | 30-34 | 35-39 | 40-44 | ≥45 | Total | pa | |
Planned OR, n | 448 | 2751 | 6595 | 7600 | 2850 | 20244 | - |
Premature ovulations, n (%) | 10 (2.23) | 65 (2.36) | 160 (2.43) | 172 (2.26) | 60 (2.11) | 476 (2.35) | - 0.46 |
Successful OR, n (%) | 372 (83) | 2243 (81.5) | 5378 (81.5) | 5838 (76.8) | 1951 (68.5) | 15782 (78) | <0.0001 |
ORs with mature oocyte, n (%) | 314 (70.1) | 1957 (71.1) | 4787 (72.6) | 5171 (68) | 1698 (59.6) | 13927 (68.8) | <0.0001 |