Table III.
Relationship between day 3 poor-quality embryonic grade and blastocyst formation
| Grade of embryos | No. of embryos | Blastulation rate * | Good-quality blastocysts * |
Blastomere with 4-5 cells
|
||
|---|---|---|---|---|---|---|
| No. of embryos | Blastulation rate * | Good-quality blastocysts * | ||||
| I | 34 | 4 (11.76) | 2 (5.88) | 34 | 4 (11.76) | 2 (5.88) |
| II | 170 | 63 (37.06) | 43 (25.29) | 164 | 61 (37.20) | 41 (25.00) |
| III | 223 | 127 (56.95) | 73 (32.74) | 70 | 29 (41.43) | 10 (14.29) |
| IV | 142 | 54 (38.03) | 20 (14.08) | 73 | 36 (49.32) | 10 (13.70) |
*
Data are presented as n (%).