Table 1.
Baseline patient characteristics.
| Characteristics | Group A | Group B | P |
|---|---|---|---|
| n=666 | n=814 | ||
| Age (y), mean ± SD | 31.48 ± 3.61 | 32.18 ± 3.77 | <0.001 |
| BMI (kg/m2), mean ± SD | 22.81 ± 3.41 | 22.84 ± 3.62 | 0.857 |
| AFC, mean ± SD | 15.80 ± 7.61 | 15.97 ± 7.63 | 0.675 |
| Hormone profile at baseline, mean ± SD | |||
| E2 (pg/mL) | 47.95 ± 19.00 | 49.20 ± 18.34 | 0.201 |
| FSH (IU/L) | 6.50 ± 2.12 | 6.77 ± 1.90 | 0.163 |
| LH (IU/L) | 3.90 ± 2.67 | 4.75 ± 2.29 | <0.001 |
| Infertility diagnosis, n (%) | 0.303 | ||
| Primary | 403 (60.5%) | 471 (57.9%) | |
| Secondary | 263 (39.5%) | 343 (42.1%) | |
| Duration of infertility (y), median (IQR) | 2.5 (2-4) | 3 (2-4) | 0.942 |
| Cause of infertility, n (%) | 0.962 | ||
| Male factor | 56 (8.4%) | 69 (8.5%) | |
| Female factor | 314 (47.1%) | 375 (46.1%) | |
| Combined factors | 241 (36.2%) | 305 (37.5%) | |
| Unexplained factor | 55 (8.3%) | 65 (8.0%) | |
BMI, body mass index; AFC, antral follicle count; E2, estradiol; FSH, follicle-stimulation hormone; LH, luteinizing hormone.