Table 1.
Baseline characteristics of the participants.
| Variable | Ultra-long GnRH-a protocol (n=237) | Long GnRH-a protocol (n=134) | p value |
|---|---|---|---|
| Age (y) | 33.55 ± 4.12 | 33.99 ± 4.08 | 0.318 |
| BMI (kg/m2) | 21.25 ± 2.62 | 21.35 ± 2.86 | 0.730 |
| Duration of infertility (y) | 5.18 ± 3.95 | 4.60 ± 3.28 | 0.136 |
| Basal FSH (IU/L) | 8.47 ± 4.04 | 8.42 ± 3.74 | 0.903 |
| Basal LH (IU/L) | 4.45 ± 2.43 | 4.72 ± 2.83 | 0.344 |
| AMH (ng/ml) | 2.37 (1.35-4.17) | 1.93 (1.13-4.18) | 0.111 |
| AFC | 12.54 ± 7.44 | 12.67 ± 7.15 | 0.873 |
| Uterine volume (ml) | 72.16 (52.94-107.04) | 61.14 (42.85-90.70) | 0.001 |
| CA125 before downregulation (U/mL) | 127.23 ± 152.82 | 108.93 ± 253.75 | 0.424 |
| Infertility, n (%) | 0.808 | ||
| Primary | 111 (46.8) | 61 (45.5) | |
| Secondary | 126 (53.2) | 73 (54.5) | |
| Associated endometrioma, n (%) | 47 (19.8) | 12 (9.0) | 0.006 |
| Previous ovarian surgery, n (%) | 57 (24.1) | 27 (20.1) | 0.388 |
| Type of adenomyosis, n (%) | 0.826 | ||
| diffuse | 188 (79.3) | 105 (78.4) | |
| focal | 49 (20.7) | 29 (21.6) | |
| Etiology, n (%) | |||
| Male factor | 3 (1.3) | 6 (4.5) | |
| Tubal | 37 (15.6) | 23 (17.2) | |
| Endometriosis | 79 (33.3) | 28 (20.9) | |
| Anovulation | 5 (2.1) | 3 (2.2) | |
| Mixed/Unexplained/Other | 113 (47.7) | 74 (55.2) |
Data are presented as mean ± SD, median (interquartile range), or number (%).
BMI, body mass index; AMH, anti-Müllerian hormone; AFC, antral follicle count (2–10 mm); FSH, follicle-stimulating hormone; LH, luteinizing hormone.