Table 4.

Factors predicting oocyte yield using multiple linear regression analysis for “oocyte yield rate”, “retrieved oocytes per cycle”, “maturity rate” and “fertilize rate”.

Independent variable	Oocyte yield rate			Retrieved oocytes/cycle			Maturity rate			Fertilize rate
	Standard coefficient b	95% CI	p-Value	Standard coefficient b	95% CI	p-Value	Standard coefficient b	95% CI	p-Value	Standard coefficient b	95% CI	p-Value
Age at retrieval	−0.151	−0.35~0.05	0.143	−0.583	−0.72~−0.44	<0.0001	0.078	−0.12~0.28	0.446	0.026	−0.267~0.320	0.859
BMI	−0.254	−0.50~−0.004	0.046	−0.050	−0.22~0.12	0.566	0.092	−0.16~0.34	0.472	0.136	−0.235~0.506	0.473
Basal FSH level	0.031	−0.28~0.34	0.842	−0.709	−0.92~−0.49	<0.0001	0.130	−0.18~0.44	0.412	−0.311	−1.003~0.379	0.376
Basal E2 level	−0.031	−0.07~0.01	0.098	0.001	−0.02~0.03	0.913	−0.027	−0.06~0.01	0.151	0.003	−0.056~0.063	0.909
Group 1 vs. Group 2	−12.723	−20.90~−4.55	0.002	−3.458	−9.07~2.16	0.227	−0.555	−9.30~8.19	0.901	8.800	−2.769~20.370	0.136
Group 3 vs. Group 2	−1.073	−6.06~3.91	0.672	0.378	−3.05~3.80	0.828	−2.152	−7.42~3.12	0.423	2.534	−5.037~10.156	0.511

BMI, body mass index; FSH, follicle-stimulating hormone.

Bold means the p value <0.05, which is significant.