Table 4.

Baseline characteristics, ovarian stimulation characteristics and outcomes of patients with pre-ovulatory E2 > 23% decreases with OPU performed as scheduled or emergently

Characteristic	Emergency OPU (n = 153)	OPU as scheduled (n = 117)	P Value
Age of women	40.09 ± 5.60	40.47 ± 5.45	0.409
BMI of women	21.28 ± 4.28	21.85 ± 2.59	0.179
Baseline FSH(mIU/mL)	10.83 ± 8.24	10.34 ± 4.42	0.435
Infertility duration	3.42 ± 2.65	3.21 ± 2.36	0.245
Infertility causes, n (%)
Tubal factor	22(14.37)	19(16.24)	0.657
Male factor	31(20.26)	26(22.22)	0.696
Endometriosis	21(13.73)	20(17.09)	0.445
DOR	152(99.35)	114(97.44)	0.198
Uterine factor	0(0)	2(2.24)	0.105
hCG/Tiplilin trigger (%)	25(16.34)	30(25.64)	0.06
Premature LH surge	128(83.66)	87(74.35)	0.06
No. of oocytes retrieved	0.87 ± 0.41	0.58 ± 0.56	< 0.001
Oocytes retrieval rate (%)	76.71 ± 42.41	74.32 ± 43.98	0.443
Mature oocytes	0.80 ± 0.42	0.52 ± 0.55	< 0.001
Mature oocytes rate (%)	92.25 ± 26.85	88.89 ± 31.68	0.130
Fertilization rate (%)	84.68 ± 36.17	84.48 ± 36.52	0.946
Embryos frozen	0.40 ± 0.49	0.24 ± 0.43	< 0.001
Top-quality embryos	0.20 ± 0.40	0.17 ± 0.37	0.106
Premature ovulation rate	4(2.61)	48(41.03)	< 0.001
Empty Follicle syndrome	17(11.11)	11(9.40)	0.648
IVF cycle without embryo frozen	91(59.5%)	88(75.2%)	0.007
Implantation rate (%)	36.84(14/38)	27.27 (6/22)	0.148
Clinical pregnancy rate per transfer (%)	34.21(13/38)	22.73(5/22)	0.137
Miscarriage rate per transfer (%)	5.26(2/38)	9.09(2/22)	0.619
Live birth rate per transfer (%)	18.42(7/38)	9.09(2/22)	0.464
Ongoing pregnancy rate per transfer (%)	13.16(5/38)	9.09 (2/22)	1.000

Data are presented as the means ±SD, BMI: body mass index. DOR: Diminished ovarian reserve