Table 2.

Oocyte retrieval cycle characteristics of the patients in the EMS group and control group.

Characteristics	EMS group	Control group	p
No. of patients	459	360
No. of oocyte retrieval cycles	459	360
No. of >14-mm follicles on the trigger day	7.10 ± 5.65	9.35 ± 6.83	0.000
No. of oocytes retrieved	7.88 ± 6.19	11.48 ± 7.65	0.000
No. of MII oocytes retrieved	6.55 ± 5.33	9.59 ± 6.58	0.000
Method of insemination			0.000
IVF, %	85.1 (2,976/3,498)	98.8(3,972/4,019)
ICSI, %	14.9 (522/3,498)	1.2(47/4,019)
No. of D3 high-quality embryos	2.61 ± 2.72	3.98 ± 3.50	0.000
No. of embryos cultured to blastocyst stage No. of viable blastocyst Viable blastocyst rate, %	1,334 222 16.6	1,630 376 23.1	0.000
No. of viable embryos, n	2.93 ± 2.65	4.57 ± 3.44	0.000
Oocyte retrieval rate, %	68.9 (3,617/5,250)	74.8 (4,134/5,524)	0.000
Poor ovarian response, %	19.2 (88/459)	7.2 (26/360)	0.000
Mature oocyte rate, %	83.0 (3,001/3,617)	83.7 (3,460/4,134)	0.391
Fertilization rate, %	77.5 (2,712/3,498)	78.3 (3,219/4,109)	0.395
Normal fertilization rate, %	73.0 (2,552/3,498)	72.4 (2,973/4,109)	0.557
Cleavage rate, %	97.1 (2,477/2,552)	97.6 (2,901/2,973)	0.234
Viable embryo rate per oocyte retrieved, %	37.2 (1,346/3,617)	39.8 (1,645/4,134)	0.020
High-quality embryo rate per oocyte retrieved, %	33.1 (1,198/3,617)	34.7 (1,433/4,134)	0.153

The red number highlights the p which was less than 0.05 signifing the statistic difference.