Table 1.

Characteristics and outcomes of patients during August 2015 to December 2017.

Variable	PartI		P value	PartII		P value
	Normal responders	Hyper responders		Normal responders	Hyper responders
N	1527	1513		935	937
Female age	29.32 ± 3.71	29.00 ± 3.69	0.0087*	29.34 ± 3.65	29.08 ± 3.69	0.0974
Male age	30.59 ± 5.03	30.09 ± 4.73	0.006*	30.57 ± 4.92	30.12 ± 4.48	0.0682
Duration of infertility (years)	3.62 ± 2.52	3.58 ± 2.47	0.9813	3.58 ± 2.47	3.58 ± 2.55	0.9647
Body mass index (kg/m2)	22.54 ± 2.65	22.80 ± 2.56	0.0036*	22.67 ± 2.62	22.97 ± 2.59	0.0124*
Antral follicle count (n.)	15.12 ± 5.33	16.81 ± 5.43	<0.0001*	15.43 ± 5.43	16.97 ± 5.59	<0.0001*
Infertility factors
Secondary infertility	631 (41.32)	650 (42.96)	0.36851	382 (40.86)	390 (41.62)	0.7362
Primary infertility	895 (58.61)	863 (57.04)		553 (59.14)	547 (58.38)
Treatment
ICSI	348 (22.79)	388 (25.64)	0.06619	193 (20.64)	222 (23.69)	0.11208
IVF	1179 (77.21)	1125 (74.36)		742 (79.36)	715 (76.31)
Total Gonadotrophin dose (IU)	2141.97 ± 683.31	2058.87 ± 649.98	0.0005*	2159.19 ± 677.14	2044.97 ± 645.96	0.0001*
Gonadotrophin duration (d)	13.56 ± 2.04	13.92 ± 1.97	<0.0001*	13.53 ± 2.02	13.87 ± 1.93	<0.0001*
Total oocytes obtained (n.)	11.17 ± 2.85	21.46 ± 5.13	<0.0001*	11.17 ± 2.86	21.45 ± 5.08	<0.0001*
No. of 2PN oocytes	6.87 ± 3.03	12.66 ± 5.00	<0.0001*	6.86 ± 3.05	12.43 ± 4.78	<0.0001*
No. of MII oocytes	8.43 ± 3.73	16.26 ± 6.38	<0.0001*	8.92 ± 3.28	16.89 ± 5.62	<0.0001*
No. of 2PN cleavage embryos	8.15 ± 3.26	15.11 ± 5.82	<0.0001*	8.26 ± 3.26	15.06 ± 5.80	<0.0001*
Outcomes			<0.0001*			<0.0001*
Whole embryo freezing	146 (9.57)	602 (39.79)		87 (9.32)	346 (36.93)
No cleavage	4 (0.26)	1 (0.07)		3 (0.32)	1 (0.11)
Cancellation	1 (0.07)	0		0	0
No insemination	12 (0.78)	3 (0.20)		8 (0.85)	3 (0.32)
No transfer	12 (0.79)	26 (1.72)		7 (0.75)	10 (1.07)
No transferred embryo	50 (3.28)	15 (0.99)		30 (3.22)	8 (0.85)
Transfer	1296 (84.98)	864 (57.11)		796 (85.32)	568 (60.62)
Abnormal fertilization	4 (0.26)	2 (0.13)		2 (0.21)	1 (0.11)
Missing	2			2

*P < 0.05.