Table 4. Multivariate analysis for total oocytes, grade 1 oocytes and fertilization rate.
Variable	Unadjusted Regression  coefficient” β” (95% CI)	p	Adjusted regression coefficient” β” (95% CI)	p
Total oocytes
Serum Estradiol (pg/ml)
1000-3000	1
<1000	-5,2 (-8.22, -2.25)	0.001	-4.5 (-7.46, -.53)	0.003
>3000	3.2 (2.00, 4.42)	<0.001	3.2 (2.01, 4.39)	<0.001
Total FSH(IU)
<2000	1
2001-3000	1.4 (-0.01, 2.91)	0.05	1.2 (-0.09, 2.60)	0.068
3001-4000	-0.8 (-2.74, 1.15)	0.421	-1.1 (-2.86, 0.74)	0.247
>4000	-2.9 (-5.54, -0.40)	0.024	-2.1 (-4.46, 0.33)	0.092
Grade 1 oocytes
Serum estradiol (pg/ml)
1000-3000	1
<1000	-2.3 (-4.04, -0.59)	0.006	-2.3 (-4.02, -0.57)	0.009
>3000	1.8 (1.13, -2.52)	<0.001	1.79 (1.10, -2.49)	<0.001
Fertilization rate
Age of donor (years)
>25	-21.4 (-41.97, -0.97)	0.04	-21.9 (-42.29, -1.67)	0.034
Total FSH
<2000
2001-3000	-2.4 (-7.67, 2.74)	0.353	-2.5 (-7.68, 2.66)	0.340
3001-4000	-4.2 (-11.29, 2.80)	0.237	-3.9 (-10.94, 3.06)	0.269
>4000	9.5 (0.08, 19.04)	0.048	9.9 (0.45, 19.28)	0.040