Table 1.
Comparisons of cycle characteristics in the agonist and the antagonist groups.
| Agonist group | Antagonist group | P value | |
| No. of cycles | 331 | 203 | |
| ICSI rate | 42% (139/331) | 43% (87/203) | NS |
| Age of patients | 33.9 ± 0.2 (22–45) | 34.4 ± 0.3 (26–46) | NS |
| Duration of stimulation (days) | 11.3 ± 0.1 | 9.9 ± 0.1 | < 0.05 |
| No. of ampoules used per cycle | 38.6 ± 0.5 | 35.4 ± 0.4 | NS |
| Peak E2 level | 2347.8 ± 71.9 | 1731.5 ± 81.1 | < 0.0001 |
| No. of oocytes retrieved per cycle | 10.0 ± 0.3 | 8.2 ± 0.4 | < 0.05 |
| No. of mature oocytes per cycle | 9.0 ± 0.3 | 7.2 ± 0.3 | < 0.05 |
| No. of normal fertilized oocytes per cycle | 6.1 ± 0.3 (2019) | 5.7 ± 0.3 (1157) | NS |
| Total no. of embryos | 2259 | 1166 | |
| Good embryo rate | |||
| IVF | 54.6% (715/1309)a | 56.5%(375/664)c | |
| ICSI | 54.4% (517/950)b | 56% (281/502)d | |
| No. of embryo transfer | 3.8 ± 0.1 | 3.32 ± 0.9 | NS |
| Embryonic early cleavage rate | |||
| IVF | 34% (450/1309) | 20% (133/664) | < 0.0001 |
| ICSI | 50% (476/950) | 37.8% (190/502) | < 0.0001 |
| Pregnancy rate (%) | |||
| IVF | 46.9% (90/192) | 44.8% (52/116) | NS |
| ICSI | 46.8% (65/139) | 44.8% (39/87) | NS |
| Implantation rate | |||
| IVF | 21.9% (160/730) | 19% (73/384) | NS |
| ICSI | 21.2% (112/528) | 18.9% (55/290) | NS |
| On going pregnancy rate | |||
| IVF | 35.9% (69/192) | 38.8% (45/116) | NS |
| ICSI | 36% (50/139) | 39% (34/87) | NS |
Note: Values are the mean ± SEM. NS: no significance.
a versus
b: NS.
cversusd: NS.