Table 1.
Binary regression analysis of the pronuclear morphological characteristics that may affect the blastocyst morphological factors
| Response variable | Predictor variable | P | OR | CI: Lower | CI: Upper |
|---|---|---|---|---|---|
| ICM alteration | Halo normality | 0.513 | 2.33 | 0.19 | 9.25 |
| PN size | 0.562 | 0.46 | 0.03 | 6.3 | |
| PN position | 0.649 | 1.63 | 0.2 | 3.28 | |
| Number of NPB | 0.035 | 2.51 | 1.2 | 3.34 | |
| Size of NPB | 0.997 | 1.76 | 0.65 | 3.43 | |
| Distribution of NPB | 0.185 | 0.18 | 0.01 | 2.27 | |
| TE alterations | Halo normality | 0.434 | 1.43 | 0.58 | 3.51 |
| PN size | 0.127 | 2.27 | 0.79 | 6.51 | |
| PN position | 0.049 | 2.38 | 1.31 | 4.05 | |
| Number of NPB | 0.196 | 0.86 | 0.21 | 1.55 | |
| Size of NPB | 0.236 | 0.754 | 0.34 | 1.14 | |
| Distribution of NPB | >0.001 | 6.03 | 2.31 | 15.77 |
Bold numbers are statistically significant
PN pronuclear, NPB nucleolar precursor bodies, ICM Inner cell mass, TE trophectoderm cells, OR odds ratio, and CI confidence interval
ICM and TE graded according to the Istanbul consensus workshop on embryo assessment [25]