Table 1 Comparison of contamination of embryonic droplets caused by contamination of the culture environment on different culture days
Time of discovery of contamination | Contamination cycle number | Droplet contamination rate | X2 | P |
|---|---|---|---|---|
Day 1 | 13.33(2/15) | 2.31(4/173) | 11.280 | 0.024 |
Day 2 | 33.33(5/15) | 8.09(14/169)a | ||
Day 3 | 26.67(4/15) | 2.31(4/155) | ||
Day 4 | 20(3/15) | 3.51(4/151) | ||
Day 5 | 6.67(1/15) | 4.3(5/147) |