Table 2 IVF stimulation characteristics

Duration of stimulation (days)

10 (10-12)

10 (9-11)

0.10

Dosage of FSH used in addition to Elonva® (IU)

600 (600-1000)

800 (450-1500)

0.12

Serum estradiol level at day 9

2733 (1652-4813)

2762 (1690-4909)

0.76

Serum estradiol level on the day of trigger (pmol/L)

8535 (5861-12206)

6501 (3676-9495)

<0.01

Serum progesterone level on the day of trigger (nmol/L)^

3.3 (2.2-4.1)

2.3 (1.6-3.0)

<0.01

Agonist trigger

9 (9.6%)

31 (32.3%)

<0.01

Endometrial thickness (mm)

11.3 (10.0-13.6)

9.0 (8.0-10.0)

<0.01

Number of follicles aspirated

14 (10-24)

13 (9-20)

0.22

Number of oocytes collected

11 (8-17)

11 (6-17)

0.29

Proportion of ICSI

38/94 (40.4%)

59/96 (61.5%)

<0.01

Number of oocytes fertilized

9 (5-13)

5 (3-9)

<0.01

Fresh embryo transfer

66/94 (70.2%)

42/96 (43.8%)

<0.01

Number of cleavage embryos transferred

0.09

  1

  2

19 (50%)

19 (50%)

3 (100%)

0 (0%)

Number of blastocysts transferred

0.58

  1

  2

25 (89.3%)

3 (10.7%)

33 (84.6%)

6 (15.4%)

Blastocyst culture

45/94 (47.9%)

86/96 (89.6%)

<0.01

Blastocyst transfer

28/66 (42.4%)

39/42 (92.9%)

<0.01

OHSS (early onset)^#

5 (5.3%)

2 (2.1%)

0.236