Table 4.
Generalized Estimating Equation Model Compare Embryological Parameters Between Groups
| Parameter | B | S.E, | Wald Chi-Square | Sig. | Exp (B) |
|---|---|---|---|---|---|
| n≤6 | −0.672 | 0.8169 | 0.677 | 0.411 | 0.511 |
| 6<n≤9 | −0.931 | 0.7850 | 1.408 | 0.235 | 0.394 |
| 9<n | 0a | 1 | |||
| Grade=A** | 3.714 | 0.7365 | 25.432 | 0.000 | 41.033 |
| Grade=B** | 1.302 | 0.4276 | 9.276 | 0.002 | 3.678 |
| Grade=C | 0a | 1 | |||
| F≤10 | 0.583 | 0.4625 | 1.591 | 0.207 | 1.792 |
| 10<F≤15 | 1.109 | 0.5959 | 3.462 | 0.063 | 3.030 |
| 15<F | 0a | 1 | |||
| mtDNA/gDNA=0–15.79 | 0.576 | 0.5392 | 1.140 | 0.286 | 1.778 |
| mtDNA/gDNA=15.80–33.33 | −0.114 | 0.3811 | 0.089 | 0.765 | 0.892 |
| mtDNA/gDNA=33.34–58.33 | −0.163 | 0.4315 | 0.143 | 0.705 | 0.850 |
| mtDNA/gDNA=58.33–433.33 | 0a | 1 |
Notes: Dependent: Whether blastocyst is formed. Model: (Intercept), number of cells, D3 morphology grade, % fragmentation and the mtDNA/gDNA ratio. aThis parameter is redundant, so it is set to zero. **Statistically significant differences, with P < 0.01.