Table 3.

Univariate and multivariate logistic analyses depicting the association of aneuploidy occurrence with basal FSH levels, maternal BMI, number of oocytes recovered, maternal age and FSH total dose in embryos grouped according to maternal age

	Overall				Pre-AMA (< 35 years)				AMA (≥ 35 years)
	Univariate		Multivariate		Univariate		Multivariate		Univariate		Multivariate
	OR (95% IC)	p	OR (95% IC)	p	OR (95% IC)	p	OR (95% IC)	p	OR (95% IC)	p	OR (95% IC)	p
Basal FSH (high vs. low)	1.02 (1.01–1.04)	< 0.0	1.02 (1.00–1.04)	0.03	1.08 (1.01–1.15)	0.03	1.08 (1.00–1.16)	0.04	1.02 (1.00–1.04)	0.03	1.01 (0.99–1.03)	0.22
Maternal BMI	1.03 (1.00–1.07)	0.07	1.02 (0.98–1.06)	0.26	0.91 (0.83–1.01)	0.08	0.93 (0.84–1.03)	0.18	1.05 (1.01–1.09)	0.01	1.02 (0.98–1.06)	0.46
N. oocytes	0.97 (0.96–0.98)	< 0.0001	0.99 (0.98–1.01)	0.34	1.00 (0.97–1.03)	0.87	___	___	0.97 (0.96–0.99)	< 0.0001	0.99 (0.97–1.01)	0.23
Maternal age	1.19 (1.15–1.23)	< 0.0001	1.18 (1.14–1.22)	< 0.0001	1.04 (0.96–1.14)	0.33	___	___	1.38 (1.31–1.45)	< 0.0001	1.34 (1.26–1.43)	< 0.0001
Total FSH	1.00 (1.00–1.00)	0.12	___	___	1.00 (1.00–1.00)	0.78	___	___	1.00 (1.00–1.00)	0.18	___	___

Note: High and low basal FSH values are those higher and lower than the group median, respectively