Table 1.
Loss of Gestational Sacs Rate (LGSR) according to embryo cleavage stage (2–3 cells, 4 cells and 5–6 cells) and blastomeric fragmentation (A = 0%, B= 1–20%, C = 21–50% and D = ≥ 51%)
| Fragmentation | ||||
|---|---|---|---|---|
| A | B | C+D | Total | |
| Cleavage | ||||
| 2–3 cells | 3/8 (37.5) | 8/30 (26.7) | 1/3 (33.3) | 12/41 (29.3) |
| 4 cells | 31/164 (18.9)a, c | 68/281 (24.2)b | 3/4 (75)b, c | 102/449 (22.7) |
| 5–6 cells | 4/5 (80)a | 1/10 (10) | 0/1 | 5/16 (31.2) |
| Total | 38/177 (21.5)d | 77/321 (24) | 4/8 (50)d | 119/506 (23.5) |
LGSR: Number of lost gestational sacs/Total number of gestational sacs.Corrected χ2 test:(a): p < 0.05.(b, c): p < 0.01.