Table 5. Descriptive analysis of patients' demographics and ICSI outcomes by MI/oocyte cutoff
	MI/oocyte ≤10.5% (n=2,399)	MI/oocyte >10.5% (n=1,521)	p
Patient's demographics
Maternal age (years)	36.10±4.82	35.77±4.41	0.034
Maternal BMI (kg/m2)	24.29±3.81	24.39±3.88	0.060
Paternal age (years)	38.54±6.60	38.41±6.26	0.530
Total gonadotropin administered (IU)	2477.61±986.76	2453.75±770.55	0.431
Estradiol level at hCG trigger day (pg/mL)	1869.45±1797.94	2060.45±1820.42	0.051
Interval between hCG and oocyte retrieval (hours)	35.34±0.41	35.34±0.43	0.733
COS outcomes*
Follicles (n)	14.80±0.22	16.49±0.27	<0.001
Retrieved oocytes (n)	10.09±0.16	11.22±0.19	<0.001
Oocyte yield (%)	68.29±0.41	69.71±0.52	0.034
MII Oocytes (n)	8.74±0.42	6.97±0.52	<0.001
MI Oocytes (n)	0.37±0.02	2.28±0.25	<0.001
GV Oocytes (n)	1.39±0.37	1.27±0.45	0.024
MII/oocytes (%)	86.23±0.37	64.51±0.46	<0.001
MI/oocytes (%)	1.69±0.22	24.87±0.27	<0.001
GV/oocytes (%)	11.82±0.32	10.45±0.39	0.007
Laboratorial outcomes**
Fertilization rate (%)	83.15±0.44	80.47±0.55	<0.001
Embryos obtained (n)	6.85±0.59	6.35±0.074	<0.001
High-quality embryos rate at day 2(%)	27.0±0.50	23.7±0.60	<0.001
High-quality embryos rate at day 3 (%)	49.20±0.60	47.70±0.70	0.130
Blastocyst rate (%)	47.8±0.70	47.5±0.80	0.767
Transferred embryos (n)	1.69±0.23	1.87±0.28	<0.001
Endometrial thickness (mm)	10.62±0.53	10.78±0.65	0.046
Clinical outcomes***
Implantation rate (%)	32.24±2.37	30.54±0.70	0.038
Clinical pregnancy rate (%)	43.72	22.25	<0.001
Miscarriage rate (%)	13.69	14.79	0.651
hCG: human chorionic gonadotropin; IU: international units. * Data was adjusted for maternal age, maternal BMI and total FSH dose. ** Data was adjusted for maternal age, maternal BMI, total FSH dose, estradiol level at hCG trigger day and number of retrieved oocytes. *** Data was adjusted for maternal age, maternal BMI, total FSH dose, estradiol level at hCG trigger day, number of retrieved oocytes, number of transferred embryos and endometrial thickness.