| |
<1.0
|
1.0-1.49
|
≥1.5
|
|
No. of fresh cycles
|
7627
|
2373
|
846
|
|
Female age (years)
|
31.1 ± 5.1
|
31.8 ± 5.0*
|
32.1 ± 5.1
|
|
BMI (kg/m2)
|
22.7 ± 3.2
|
22.3 ± 3.0*
|
22.1 ± 3.0
|
|
Basal FSH (IU/L)
|
7.7 ± 2.9
|
7.3 ± 2.4*
|
7.2 ± 2.2
|
|
Total dose of Gn (IU)
|
2201.2 ± 940.7
|
2268.6 ± 879.3*
|
2357.1 ± 890.1*
|
|
Serum E2 (pg/ml), hCG day
|
3941.8 ± 2118.6
|
5321.0 ± 2353.8*
|
6201.8 ± 4598.0*
|
|
Serum LH (IU/L), hCG day
|
2.0 ± 1.3
|
1.9 ± 1.4
|
1.72 ± 1.9*
|
|
Endometrial thickness (mm), hCG day
|
12.3 ± 2.4
|
12.2 ± 2.5
|
12.0 ± 2.4*
|
|
No. of oocytes retrieved
|
9.3 ± 4.4
|
11.1 ± 4.6*
|
12.0 ± 4.8*
|
|
No. of 2PN oocytes
|
6.4 ± 3.3
|
7.5 ± 3.5*
|
7.8 ± 4.8
|
|
No. of 2PN cleavage embryos
|
6.4 ± 3.3
|
7.5 ± 3.5*
|
7.8 ± 4.8
|
|
No. of available embryos
|
5.0 ± 2.8
|
5.7 ± 3.0*
|
5.9 ± 3.2
|
|
Fertilization rate (%)
|
69
|
67.4*
|
65.1*
|
|
Cleavage rate (%)
|
97.8
|
97.7
|
97.3**
|
|
No. of transferred embryos
|
2.10 ± 0.34
|
2.12 ± 0.34*
|
2.14 ± 0.39
|
|
No. of transferred top-quality embryos
|
1.97 ± 0.55
|
2.00 ± 0.53**
|
2.02 ± 0.56*
|
|
Implantation rate (%)
|
36.3
|
31.6*
|
26*
|
|
CPR (%)
|
50.4
|
45.5*
|
36.2*
|
