Table 2. Main findings according to estradiol levels in three study groups with different E2 levels
Variable	Group 1 (E2 up to 1000 pg/ml)	Group 2 (E2 of 1001-3000 pg/ml)	Group 3 (E2 higher than 3000 pg/ml)	p value
Age (years)	36.7±5.93 (19-46)	35±6.51 (18-56)	37.05±5.67 (18-47)	0.106
Baseline estradiol (pg/ml)	49.5±37.25 (5-139)	61.63±69.58 (9-278)	44.95±22.08 (9-104)	0.358
Baseline FSH (IU/ml)	5.25±3.36 (0.2-14.7)	9.97±5.24 (1.4-10.9)	8.45±12 (2.7-70.6)	0.362
Follicles at the end of stimulation (n)	12.19±9.27 (0-34)	13.35±9.76 (1-48)	9.7±4.81 (1-19)	0.179
Retrieved oocytes (n)	3.77±3.32 (1-15)	10.65±7.28 (1-33)	16.51±8.28 (2-38)	0.000
Retrieved MII oocytes (n)	3.1±3.11 (1-15)	9.24±6.54 (1-28)	14.16±6.54 (2-38)	0.000
Oocyte maturity (%)	82.2	88	85	0.000
Fertilized (n)	2.35±2.65 (0-13)	6.48±5.61 (0-23)	10.52±7.49 (0-30)	0.000
Fertilization rate (%)	75.8	70.12	74	0.000