Non-antioxidant group (n = 164)

Antioxidant group (n = 135)

P

Estradiol level at hCG day (pg/ml)

1500

(184 - 5400)

1400

(434 - 6000)

0.407

Total amount of gonadotropins

dose (IU/ml)

3600

(1400 - 9000)

2550

(1000 - 6300)

<0.001

Number of oocytes collected

10 (0 - 33)

11 (2 - 29)

0.960

Metaphase II oocytes

8 (0 - 29)

7 (1 - 20)

0.855

Number of oocytes

fertilized

5 (0 - 21)

5 (0 - 18)

0.362