Table 2. Multivariate logistic regression model to determine possibility of having at least one blastocyst formed, adjusted for confounders
	Coefficient	Standard error of Coefficient	p value	OR
Women age (years)	-0.084	0.012	<0.001	0.919
Number of MII oocytes recovered	-0.122	0.024	<0.001	0.885
Number of embryos at cleavage stage (D3)	0.846	0.042	<0.001	2.330
Semen with mild alteration	-0.405	0.108	<0.001	0.667
Semen with severe alteration	-0.303	0.137	0.027	0.738
Epididymis sperm	-0.302	0.230	0.188	0.739