| Basic situation |
| Age (years) |
31.39 ± 2.98 |
30.53 ± 3.61 |
0.333 |
| BMI (Kg/m2) |
20.92 ± 2.24 |
21.31 ± 2.59 |
0.351 |
| Infertility durations (years) |
4.18 ± 3.34 |
3.54 ± 2.37 |
0.303 |
| Basic hormones on cycle day 3 |
| D3 LH (IU/L) |
5.17 ± 2.97 |
4.18 ± 2.44 |
0.109 |
| D3 FSH (IU/L) |
6.28 ± 1.77 |
5.87 ± 1.68 |
0.336 |
| D3 E2 (pg/mL) |
49.58 ± 15.67 |
44.22 ± 13.95 |
0.130 |
| On the commencing day |
| LH level (IU/L) |
0.54 ± 0.22 |
0.49 ± 0.25 |
0.379 |
| E2 level (pg/mL) |
28.71 ± 11.20 |
29.30 ± 12.28 |
0.847 |
| P4 level (ng/mL) |
0.33 ± 0.15 |
0.36 ± 0.18 |
0.624 |
| Antral follicular count (n) |
12.88 ± 5.49 |
15.01 ± 5.56 |
0.128 |
| On the day of hCG |
| LH level (IU/L) |
0.54 ± 0.27 |
0.64 ± 0.44 |
0.343 |
| E2 level (pg/mL) |
1,609.00 ± 1,276.31 |
2,020.42 ± 1,214.77 |
0.179 |
| P4 level (ng/mL) |
0.58 ± 0.41 |
0.54 ± 0.31 |
0.555 |
| Endometrial thickness (mm) |
11.45 ± 2.49 |
11.37 ± 2.00 |
0.875 |
| Initial dose of FSH (IU/day) |
183.82 ± 54.44 |
164.93 ± 53.59 |
0.161 |
| Days of stimulation (days) |
11.88 ± 1.54 |
11.48 ± 3.65 |
0.652 |
| Total dose of FSH (IU) |
2,585.29 ± 950.25 |
2,220.57 ± 1,075.61 |
0.174 |
| Laboratory data |
| No. of oocytes retrieved |
11.00 ± 4.89 |
11.65 ± 5.53 |
0.640 |
| No. of 2PNs per cycle |
7.41 ± 4.42 |
8.02 ± 4.31 |
0.572 |
| No. of cleavage per cycle |
7.35 ± 4.33 |
7.78 ± 4.28 |
0.682 |
| No. of good quality embryos per cycle |
4.41 ± 3.34 |
4.18 ± 3.20 |
0.771 |
| Rate of good quality embyros %(n) |
53.96 (75/139) |
50.51 (1,036/2,051) |
0.483 |
| Clinical outcomes |
| Clinical pregnancy rate %(n) |
82.35 (14/17) |
58.87 (146/248) |
0.072 |
| Ongoing pregnancy rate %(n) |
76.47 (13/17) |
56.45 (140/248) |
0.131 |
| Live birth rate %(n) |
76.47 (13/17) |
54.84 (136/248) |
0.082 |
| Early abortion rate %(n) |
5.88 (1/17) |
2.42 (6/248) |
0.375 |
| Rate of E2 > 4,000 (pg/mL) on the day of hCG %(n) |
5.88 (1/17) |
6.05 (15/248) |
0.978 |
