Table 1 Clinical characteristics of participants

Age (years)

34 (31, 38)

33 (32, 37)

0.96^a

BMI (kg/m²)

20.9 (19.5, 23.3)

20.7 (19.9, 21.8)

0.37^a

Duration of infertility (years)

2 (1.0, 5.3)

4.5 (2.0, 7.3)

0.17^a

Previous conception

62.5% (20/32)

40.6% (13/32)

0.13^b

Previous IVF attempt

0 (0, 1)

1 (0, 1)

0.16^a

AMH (ng/mL)

1.1 (0.9, 1.4)

1.2 (0.9, 1.8)

0.32^a

AFC

3.5 (2.8, 5.0)

4.0 (3.0, 5.0)

0.39^a

Basal FSH (IU/L)

9.2 ± 2.7

9.4 ± 2.7

0.80^c

Basal LH (IU/L)

4.9 (3.7, 5.7)

5.4 (4.2, 5.7)

0.36^a

Basal E2 (pg/mL)

38.8 (30.7, 63.2)

43.2 (29.8, 59.5)

0.65^a

Days of stimulation

7 (6.0, 7.3)

7 (5.8, 8.0)

0.96^a

FSH dose (IU)

637.5 (450.0, 1050.0)

675.0 (450.0, 1050.0)

0.64^a

LH dose (IU)

450 (150.0, 618.8)

450 (300.0, 618.8)

0.83^a

E2 on the day of hCG (pg/mL)

1160.3 ± 582.6

1380.8 ± 638.2

0.15^c

Follicles ≥14 mm on day of hCG

2 (1, 3)

3 (2, 4)

0.03^a

No. of oocytes retrieved

2 (1, 3)

3 (2, 4)

0.04^a

Normal fertilization rate

69.1% (47/68)

82.4% (75/91)

0.05^b

No. of Day 3 available embryo

0 (0, 1)

0 (0, 2)

0.56^a