Table 2.

Outcomes of ovarian stimulation and embryo culture

	Fixed group (n = 100)	Flexible group (n = 101)	P
Duration of rFSH (days)	9.5 ± 1.1	9.7 ± 1.0	0.346
Total amount of rFSH (IU)	1427.8 ± 210.6	1455.9 ± 243.4	0.381
Duration of GnRH antagonist (days)	6.6 ± 1.2	6.0 ± 1.0	0.001
Premature LH rise (LH > 10 IU/L)	1	2
On Antagonist start day
E2 (pg/ml)	629.1 ± 294.0	787.7 ± 259.5	<.0001
LH (IU/L)	2.4 ± 2.8	2.7 ± 2.0	0.461
Leading follicle≥12 mm (%)	22 (22.0)	48 (48.5)	<.0001
On hCG trigger day
E2 (pg/ml)	3373.6 ± 1324.4	3741.0 ± 1099.4	0.034
P (ng/ml)	0.9 ± 0.4	1.0 ± 0.4	0.580
No. of oocytes retrieved	16.7 ± 7.3	17.5 ± 5.9	0.421
No. of MII oocytes	14.9 ± 6.7	15.3 ± 5.5	0.577
No. of good-quality embryos	5.5 ± 3.4	5.7 ± 3.4	0.674