. 2013 Nov 8;31(2):185–194. doi: 10.1007/s10815-013-0129-4

Table 2.

Mediation analysis of the associations between live birth, and number of oocytes retrieved, total number of embryos, total number of good-quality embryos, and AFC using logistic regression

No.	Variable				Model Output
No.	Variable		Odds Ratio^a	P-value^a	Odds Ratio^b	P-value^b	Odds Ratio^c	P-value^c
1	Number of oocytes			0.003*		0.387*		0.334*
	Low	≤6	1		1		1
	Medium	7–14	1.62	0.002	1.22	0.233	1.06	0.721
	High	≥15	1.69	0.001	1.12	0.511	0.93	0.668
2	Total number of embryos			<0.0001*		0.873*		0.989*
	Low	≤5	1		1		1
	Medium	6–9	1.46	0.001	1.04	0.750	0.98	0.884
	High	≥10	1.73	0.001	1.07	0.604	0.99	0.912
3	Total number of good-quality embryos			<0.0001*		0.770*		0.911*
	Low	≤3	1		1		1
	Medium	4–6	1.62	<0.0001	1.09	0.470	1.03	0.780
	High	≥7	1.66	<0.0001	1.05	0.679	0.99	0.904
4	AFC			<0.0001*		0.057*		0.313*
	Low	≤6	1		1		1
	Medium	7–10	1.43	0.003	1.20	0.136	1.12	0.353
	High	≥11	1.80	<0.0001	1.35	0.017	1.22	0.131

^aLogistic regression model with only cohort-specific variable included

^bLogistic regression model with cohort-specific variable, number of good-quality embryos transferred, and number of embryos transferred

^cLogistic regression model with cohort-specific variable, number of good-quality embryos transferred, number of embryos transferred, and maternal age

*P-value of testing overall effects (df = 2)