Table 2.

Analysis of factors affecting 24-h maturation rate of 157 GV oocytes during R-IVM

	Maturation rate in 24 h, %	Chi square	P value	OR	95% CI
Age of patients involved, years		0.006	0.936	0.974	0.517–1.837
< 33 (n = 86)	57.0
≥ 33 (n = 71)	56.3
FSH, mIU/ml		0.222	0.638	1.174	0.602–2.288
< 7 (n = 103)	55.3
≥ 7 (n = 54)	59.3
AMH, ng/ml		0.044	0.835	1.080	0.524–2.226
< 4 (n = 41)	55.0
≥ 4 (n = 116)	56.9
Ovarian stimulation protocol		0.037	0.848	1.064	0.561–2.019
GnRH agonist protocol (n = 91)	56.0
GnRH antagonist protocol (n = 66)	57.6
E2 on hCG day, pg/ml		0.330	0.566	0.831	0.442–1.563
< 3000 (n = 78)	59.0
≥ 3000 (n = 79)	54.4
P on hCG day, ng/ml		0.087	0.786	1.100	0.585–2.070
< 1 (n = 81)	55.6
≥ 1 (n = 76)	57.9
GV diameter, μm		0.006	0.938	0.973	0.492–1.925
< 30 (n = 49)	57.1
≥ 30 (n = 108)	56.5
Oocyte diameter, μm		0.011	0.917	1.036	0.537–1.996
< 110 (n = 57)	56.1
≥ 110 (n = 100)	57.0

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