Table 2.
Ovarian stimulation outcomes of the study cohort (n = 427)
| Parameter | hCG trigger (n = 318) | GnRH-a and hCG trigger (n = 109) | P |
|---|---|---|---|
| Total stimulation days | 10.7 (±2.67) | 10.8 (±3.09) | 0.75 |
| Total GnRH-ant days | 5.75 (±2.82) | 5.49 (±2.61) | 0.40 |
| Total gonadotropins administered | 2720.9 (±753.2) | 2741.2 (±761.7) | 0.36 |
| Peak endometrial thickness (mm) | 10.5 (±2.92) | 10.6 (±2.93) | 0.94 |
| Total oocytes retrieved | 9 (5–14) | 10 (5–13) | 0.56 |
| Metaphase-II oocytes retrieved | 6 (4–10) | 8 (4–11) | 0.02 |
| Metaphase-II oocytes (%) | 69.8% | 82.1% | 0.03 |
| Time between trigger and oocyte retrieval (mins) | 2173.5 (±21.4) | 2169.3 (±25.7) | 0.10 |
| Time between trigger and removal of cumulus cells (mins) | 2235.4 (±28.7) | 2240.1 (±27.1) | 0.14 |
| Time between trigger and ICSI (mins) | 2381.3 (±19.7) | 2379.0 (±20.5) | 0.30 |
| Day 3 embryos transferred | 2.51 (±0.89) | 2.67 (±0.64) | 0.08 |
| Implantation rate (%) | 10.7% | 18.1% | 0.13 |
| Clinical pregnancy rate (%) | 18 (5.67%) | 30 (27.5%) | <0.001 |
| Live birth rate (%) | 11 (3.46%) | 22 (20.2%) | <0.001 |
| Twin live birth rate (%) | 1/11 (9.1%) | 3 (13.6%) | 0.74 |
Data are presented as mean ± (standard deviation), n (%), and median (interquartile range)
GnRH-ant gonadotropin releasing hormone-antagonist, ICSI intracytoplasmic sperm injection