Table 1.
Baseline characteristics
| Population characteristics | Follicular flushing (n=35) | Direct aspiration (n=36) | p |
|---|---|---|---|
| Age (years)a | 32.0 ± 3.9 | 32.5 ± 4.1 | 0.616 |
| BMI (kg/m2)a | 25.4 ± 3.4 | 24.7 ± 2.7 | 0.242 |
| Day 2 FSH (mIU/ml)a | 7.4 ± 1.8 | 7.6 ± 1.8 | 0.713 |
| AMH (ng/ml)a | 1.7 ± 0.7 | 1.7 ± 0.7 | 0.676 |
| AFCa | 8.6 ± 4.4 | 8.1 ± 4.5 | 0.643 |
| Cause of infertility, n (%)b | |||
| Diminished ovarian reserve | 11 (31.4) | 14 (38.9) | 0.796 |
| Tubal | 19 (54.3) | 18 (50) | |
| Unexplained | 5 (14.3) | 4 (11.1) | |
| Poor ovarian response, n (%)b | |||
| Expected | 11 (31.4) | 14 (38.9) | 0.511 |
| Unexpected | 24 (68.6) | 22 (61.1) | |
| Protocol, n (%)b | |||
| Agonist | 22 (62.9) | 24 (66.7) | 0.737 |
| Antagonist | 13 (37.1) | 12 (33.3) | |
| Starting dose of gonadotropins (IU)a | 346.4 ± 48.4 | 340.6 ± 59.3 | 0.654 |
| Total dose of gonadotropins (IU)a | 4492.3 ± 1126 | 4087.6 ± 1075.7 | 0.126 |
| Total duration of stimulation (days)a | 11.8 ± 1.3 | 11.6 ± 1.3 | 0.608 |
| Follicles on the day of triggera | 5.6 ± 1.1 | 5.5 ± 1.3 | 0.806 |
| Serum estradiol on day of trigger (pg/ml)a | 1542.6 ± 645.2 | 1693.9 ± 786.9 | 0.379 |
| Serum progesterone on day of trigger (ng/ml)a | 1.5 ± 1.2 | 2.2 ± 1.8 | 0.068 |
| ET on day of trigger (mm)a | 9.3 ± 1.7 | 9.0 ± 1.6 | 0.558 |
Data were presented as aMean±SD, bn (%). BMI=Body mass index, FSH=Follicle stimulating hormone, AMH=Anti-Müllerian hormone, AFC=Antral follicle count, SD=Standard deviation, ET=Endometrial thickness