Table 1. Demographic and clinical characteristics of the enrolled participants (n = 210).
| Variable | Mean | SD | n (%) |
| Age, mean | 31.7 | 4.7 | |
| 20–25 | 17 (8.1) | ||
| 26–30 | 75 (35.7) | ||
| 31–35 | 73 (34.8) | ||
| 36–40 | 37 (17.6) | ||
| > 40 | 8 (3.8) | ||
| BMI a | 22.3 | 3.6 | |
| < 18.5 | 24 (11.5) | ||
| 18.5–24.9 | 142 (68.3) | ||
| 25-27.9 | 26 (12.5) | ||
| > 28 | 16 (7.7) | ||
| Duration of infertility (years) b | 4.0 | 3.2 | |
| Types of infertility | |||
| Primary infertility | 111 (52.9) | ||
| Secondary infertility | 99 (47.1) | ||
| Female baseline hormone level | |||
| FSH (IU/l) | 7.5 | 2.6 | |
| LH (IU/l) | 5.2 | 3.4 | |
| Estradiol (pg/ml) | 50.8 | 43.7 | |
| Progesterone (ng/ml) | 0.7 | 1.0 | |
| AMH (ng/ml) c | 3.6 | 2.8 | |
| AFC d | 19.7 | 11.3 | |
| Ovarian stimulation protocol | |||
| Long protocol | 59 (28.1) | ||
| Prolonged protocol | 85 (40.5) | ||
| Antagonist protocol | 66 (31.4) | ||
| Treatment method | |||
| IVF | 154 (73.3) | ||
| ICSI | 56 (26.7) | ||
| Sperm source | |||
| Husband | 153 (72.9) | ||
| Donor | 57 (27.1) |
aBMI was recorded in 208 participants. bDuration of infertility was documented in 187 participants. cAMH was detected in 189 participants. dAFC was monitored only in 141 participants. AFC, antral follicle count; AMH, anti-Müllerian hormone; ICSI, intracytoplasmic sperm injection; IVF, in vitro fertilization; PPOS, progestin-primed ovarian stimulation; SD, standard deviation.