Table 2.
IVF/ICSI outcome characteristics of the different MIIoocytes group
| Group | A(1-3 MII) N = 2326,10.5% |
B(4-8 MII) N = 6737,30.4% |
C(9-14 MII) N = 7910,35.7% |
D(≥ 15 MII) N = 5162,23.4% |
P-value |
|---|---|---|---|---|---|
| Fresh live birth rate (%) | 318(13.67%) | 2462(36.54%) | 3597(45.47%) | 1510(29.25%) | <0.001c |
| Cumulative live Birth rate (%) | 508(21.84%) | 3673(54.52%) | 6002(75.88%) | 4511(87.39%) | <0.001c |
| Age(years) | 34.48 ± 5.69 | 31.80 ± 4.83 | 30.14 ± 4.03 | 29.25 ± 3.65 | <0.001b |
| Oocytes retrieved | 3(2–3) | 7(6–9) | 13(11–15) | 20(18–24) | <0.001a |
| Maturation rate (%) | 0.849 ± 0.225 | 0.861 ± 0.154 | 0.887 ± 0.115 | 0.914 ± 0.087 | <0.001b |
| Fertilization rate(%) | 0.724 ± 0.342 | 0.760 ± 0.223 | 0.783 ± 0.185 | 0.806 ± 0.164 | <0.001b |
| Cleavage rate(%) | 0.878 ± 0.268 | 0.9014 ± 0.177 | 0.9112 ± 0.138 | 0.9124 ± 0.122 | 0.994b |
| Blastocyst rate (%) | 0.370 ± 0.450 | 0.539 ± 0.366 | 0.609 ± 0.281 | 0.652 ± 0.234 | <0.001b |
| Freeze-all rate (%) | 684(29.4%) | 1287(19.1%) | 1428(18.1%) | 2649(51.3%) | <0.001c |
| Gn duration(days) | 9.46 ± 2.23 | 10.13 ± 1.96 | 10.39 ± 1.80 | 10.57 ± 1.88 | <0.001b |
| Gn dosage(IU) | 2400(1725–3000) | 2400(1695–3000) | 1950(1405–2550) | 1665(1275–2212) | <0.001a |
| Embryos transferable | 1(0–2) | 2(2–3) | 4(2–5) | 6(4–8) | <0.001a |
a,Kruskal–Wallis test. Values are Median (IQR).
b,One-way ANOVA. Values are mean + SD.
c,Pearson x2 test. Values are number (percentage)