| Table 2. The oocyte quantity and quality variables in the overall population (n=444) and each group (PPO vs. control group). The numeric variables are shown as mean ± standard deviation. A p value refers to the comparison using an ANOVA test. MWMann-Whitney Test due to a negative homogeneity of variances test; non-parametric data are shown by median±interquartile range. The categorical variables are shown as proportion. A p value refers to the comparison using the Chi-square test. *p=0.05 was considered statistically significant. PPO = partial premature ovulation. IQR = interquartile range. | ||||
| OVERALL N=444 |
PPO GROUP N=111 |
CONTROL GROUP; N=333 |
p value | |
|---|---|---|---|---|
| OOCYTE QUANTITY Aspiration rate No. oocytes No. mature oocytes No. correctly fertilized oocytes No. top-quality blastocysts |
84.8% 8.0 (IQR 9.0) 6.0 (IQR 8.0) 4.5 (IQR 6.0) 1.0 (IQR 2.0) |
61.8% 5.0 (IQR 5.0) 4.0 (IQR 4.0) 3.0 (IQR 4.0) 0.0 (IQR 1.0) |
89.6% 10.0 (IQR 9.5) 8.0 (IQR 8.0) 6.0 (IQR 6.0) 1.0 (IQR 2.0) |
< 0.001* <0.001MW* <0.001MW* <0.001MW* <0.001MW* |
| OOCYTE QUALITY Maturation rate Fertilization rate Top-quality blastocyst rate |
80.5% 73.7% 27.3% |
80.1% 75.9% 21.9% |
80.6% 72.9% 29.0% |
0.816 0.295 0.054 |