| Table 3. Blastocyst formation rate. | |||
| Characteristic | Antagonist | Progestin | p-value |
| Blastocyst Formation Rate per cycle (%)* | 50.00±41.79 | 55.60±38.64 | 0.106W |
| 18 - 34 y.o. ** | 50.12±24.29 | 54.58±26.21 | 0.372T |
| 35 - 37 y.o . ** | 49.18±25.14 | 53.37±26.31 | 0.535T |
| 38 - 40 y.o * | 66.70±45.60 | 61.90±61.74 | 0.266W |
| 41 - 42 y.o . ** | 46.78±15.84 | 63.18±25.26 | 0.163T |
* Data are presented as median ± IQR
** Data are presented as median ± SD
W Wilcoxon Mann-Whitney test
T t-test (both for independent samples)