Table 3.

Analysis of factors influencing normal fertilization rate of 104 matured oocytes following ICSI

	Normal fertilization rate, %	Chi square	P value	OR	95% CI
Patient age, years		2.239	0.135	0.548	0.249–1.208
< 33 (n = 56)	50.0
≥ 33 (n = 48)	35.4
FSH, mIU/ml		0.351	0.553	0.783	0.348–1.761
< 7 (n = 66)	45.5
≥ 7 (n = 38)	39.5
AMH, ng/ml		0.027	0.087	1.078	0.439–2.649
< 4 (n = 27)	42.3
≥ 4 (n = 77)	44.2
E2 on hCG day, pg/ml		1.777	0.182	1.700	0.777–3.718
< 3000 (n = 54)	37.0
≥ 3000 (n = 50)	50.0
P on hCG day, ng/ml		0.001	0.979	0.990	0.455–2.150
< 1 (n = 53)	43.4
≥ 1 (n = 51)	43.1
GV diameter, μm		1.829	0.176	0.561	0.242–1.301
< 30 (n = 32)	53.1
≥ 30 (n = 72)	38.9
Oocyte diameter, μm		1.105	0.293	0.650	0.291–1.454
< 110 (n = 38)	50.0
≥ 110 (n = 66)	39.4
GV-MI, h		8.217	0.004	0.136	0.029–0.633
< 8 (n = 87)	49.4
≥ 8 (n = 17)	11.8
MI-MII, h		0.863	0.353	0.690	0.315–1.512
< 16 (n = 57)	47.4
≥ 16 (n = 47)	38.3
GV-MII, h		6.399	0.011	0.165	0.035–0.772
< 24 (n = 89)	48.3
≥ 24 (n = 15)	13.3
MII-ICSI, h		0.410	0.522	0.769	0.344–1.719
< 6 (n = 38)	47.4
≥ 6 (n = 66)	40.9

FSH follicle stimulating hormone, AMH anti-Müllerian hormone, E2 estradiol, P progesterone, GV germinal vesicle