Table 1.
Extended culture outcomes in GQE (good-quality embryos), FQE (fair-quality embryos), and PQE (poor-quality embryos) at cleavage stage (day 2)
| GQE (n = 293) | FQE (n = 507) | PQE (n = 2309) | p value | |
|---|---|---|---|---|
| Total blastulation (including all blastocyst quality stages) |
197 (67.2%) | 366 (72.2%) | 1125 (48.7%) | < 0.001* |
| Blastocyst expansion time | ||||
| Day 5 | 113 (57.4%) | 222 (60.6%) | 562 (50%) | 0.001* |
| Day 6 | 84 (42.6%) | 144 (39.3%) | 563 (50%) | |
| Frozen blastocysts | 150 (51.2%) | 254 (50.1%) | 729 (31.6%) | < 0.001* |
| Top-quality blastocysts (among frozen blastocysts) | 22 (14.7%) | 30 (11.8%) | 53 (7.3%) | 0.005* |
| Good-quality blastocysts (among frozen blastocysts) | 91 (60.7%) | 163 (64.2%) | 349 (47.9%) | < 0.001* |
*Significant difference (p < 0.05)