| Table 2. Baseline characteristic of the patients which received a transfer of blastocyst which had a collapse event during the development compared to those that did not. There was no statistical significant difference among laboratory parameters such as oocyte number, fertilization, good quality blastocyst or blastocyst utilization (2PN: two pronuclei, OPU: Oocyte Pick Up). | |||
| Not collapsed (294 patients) | Collapsed (62 patients) | p | |
| Age (years) | 32.68±3.20 | 32.96±3.32 | >0.05 |
| Mean number oocytes collected | 12.18±2.88 | 12.41±3.18 | >0.05 |
| Number of Mature Oocytes | 10.09±2.66 | 10.209±2.98 | >0.05 |
| Normal fertilisation rate (2PN/Oocyte collected) | 67.44% | 66.98% | >0.05 |
| Mean number 2PNs per cycle | 7.98±2.58 | 7.87±2.87 | >0.05 |
| Good Quality Blastocyst | 3.12±2.25 | 3.08±2.23 | >0.05 |
| Blastocyst Utilization Rate (Blast/2PN) | 62.68% | 61.88% | >0.05 |