Table II.
Relationship between the cell number of day 3 poor-quality blastomeres and blastocyst formation
| Cell No. of blastomeres | No. of embryos | Blastulation rate * | Good-quality blastocysts * |
Grade III-IV
embryos
|
||
|---|---|---|---|---|---|---|
| No. of embryos | Blastulation rate * | Good-quality blastocysts * | ||||
| 2 | 8 | 0 (0.00) | 0 (0.00) | 8 | 0 (0.00) | 0 (0.00) |
| 3 | 27 | 4 (14.81) | 4 (14.81) | 21 | 2 (9.52) | 2 (9.52) |
| 4 | 193 | 65 (33.68) | 36 (18.65) | 74 | 33 (44.59) | 16 (21.62) |
| 5 | 148 | 65 (43.92) | 27 (18.37) | 69 | 32 (46.38) | 4 (5.80) |
| 6 | 94 | 45 (47.87) | 27 (28.72) | 94 | 45 (47.87) | 27 (28.72) |
| 7 | 68 | 48 (70.59) | 30 (44.12) | 68 | 48 (70.59) | 30 (44.12) |
| 8 | 27 | 19 (70.37) | 12 (44.44) | 27 | 19 (70.37) | 12 (44.44) |
| 9 | 4 | 2 (50.00) | 2 (50.00) | 4 | 2 (50.00) | 2 (50.00) |
| Even number | 322 | 129 (40.06) | 75 (23.29) | 203 | 97 (47.78) | 55 (27.09) |
| Odd number | 247 | 119 (48.18) | 63 (25.51) | 162 | 84 (51.85) | 38 (23.46) |
There is a positive correlation between the cell number of blastomeres and the blastulation rate (p=0.000); Compare even number and odd number group, p= 0.0530.
*
Data are presented as n (%).