Table 2.
Embryo morphology distribution of 996 embryos
| Number of cells | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Number of embryos | 18 (2%) | 22 (2%) | 61 (6%) | 76 (8%) | 160 (16%) | 136 (14%) | 416 (42%) | 33 (3%) | 56 (6%) | 2 (0.2%) | 16 (2%) |
| Fragmentation | 0% | 1–4% | 5% | 10% | 15% | 20% | 25% | 30% | |||
| Number of embryos | 82 (8%) | 119 (12%) | 386 (39%) | 215 (22%) | 87 (9%) | 71 (7%) | 19 (2%) | 17 (2%) | |||
| Morphology grade | A | AB | B | BC | C | CD | D | ||||
| Number of embryos | 2 (0.2%) | 75 (8%) | 690 (69%) | 179 (18%) | 49 (5%) | 1 (0.1%) | 0 | ||||
| Morphology group | 8 cells ≤ 5% fragmentation | 8 cells > 5% fragmentation | 9–12 cells | 6–7 cells | 2–5 cells | ||||||
| Number of embryos | 270 (27%) | 146 (15%) | 107 (11%) | 296 (30%) | 177 (18%) | ||||||