|
Maternal age at oocyte retrieval, y
|
29.6 ± 3.7
|
29.6 ± 3.2
|
0.945
|
|
Maternal BMI, kg/m2
|
21.8 ± 3.1
|
21.3 ± 2.7
|
0.421
|
|
Gravidity
|
1.0 (0–4)
|
2.0 (0–4)
|
0.194a
|
|
Parity
|
0.0 (0–1)
|
0.0 (0–2)
|
0.932a
|
|
No. of previous miscarriages, n
|
1.0 (0–4)
|
2.0 (0–4)
|
0.095a
|
|
Basal E2 level, pg/ml
|
29.2 ± 9.4
|
29.0 ± 13.5
|
0.940
|
|
Basal FSH level, IU/ml
|
5.6 ± 0.9
|
5.5 ± 1.3
|
0.726
|
|
E2 level on HCG day, pg/ml
|
3141 ± 1387.9
|
3127 ± 1110.1
|
0.962
|
|
No. of retrieved oocytes
|
21.1 ± 10.7
|
19.3 ± 7.8
|
0.390
|
|
No. of good-quality blastocysts
|
6.8 ± 4.6
|
6.6 ± 3.4
|
0.809
|
|
No. of embryos available to transfer
|
6.9 ± 4.0
|
6.5 ± 2.8
|
0.618
|
|
Blastocyst transfer
| | |
0.380b
|
|
D5
|
19 (67.9)
|
43 (76.8)
| |
|
D6
|
9 (32.1)
|
13 (23.2)
| |
|
COS protocol
| | |
0.071b
|
|
Long agonist
|
4 (14.3)
|
19 (33.9)
| |
|
Short agonist
|
6 (21.4)
|
15 (26.8)
| |
|
Antagonist
|
18 (64.3)
|
22 (39.3)
| |
