Table 3 Regression analysis/prediction of the development of morulas to blastocysts
Variable | Significance | OR | 95% CI for OR | |
|---|---|---|---|---|
Lower | Upper | |||
Morula grades | ||||
 M1 | – | 1 | – | – |
 M2 | 0.022 | 0.305 | 0.111 | 0.843 |
 M3 | <0.001 | 0.114 | 0.042 | 0.311 |
Age | 0.137 | 0.950 | 0.888 | 1.016 |
Insemination method | ||||
 Conventional IVF | – | 1 | – | – |
 ICSI | 0.487 | 0.828 | 0.487 | 1.409 |
Compaction day | ||||
 Day 5 | – | 1 | – | – |
 Day 6 | 0.492 | 0.701 | 0.255 | 1.930 |