Table 1 Analysis of the available late blastocysts from different cleavage stages on different days and expansion stages
Variable | Day 5, n (%) | Day 6, n (%) | Pa | ||
|---|---|---|---|---|---|
Same cell numbers | |||||
group 811 | 1808 (74.46) | 620 (25.54) | 0.891 | ||
expansion stage ≥ 4 | 1286 (71.13) | 0.018 | |||
expansion stage < 4 | 522 (28.87) | ||||
group 821 | 1245 (73.80) | 442 (26.20) | |||
expansion stage ≥ 4 | 826 (66.35) | ||||
expansion stage < 4 | 419 (33.65) | ||||
group 812 | 723 (74.23) | 251 (25.77) | |||
expansion stage ≥ 4 | 505 (69.85) | ||||
expansion stage < 4 | 218 (30.15) | ||||
Different cell numbers | |||||
group 811 | 1808 (74.46) | 620 (25.54) | < 0.001 | ||
expansion stage ≥ 4 | 1286 (71.13) | 0.001 | |||
expansion stage < 4 | 522 (28.87) | ||||
group 711 | 271 (55.88) | 214 (44.12) | |||
expansion stage ≥ 4 | 165 (60.89) | ||||
expansion stage < 4 | 106 (39.11) | ||||
group 911 | 227 (75.42) | 74 (24.58) | |||
expansion stage ≥ 4 | 167 (73.57) | ||||
expansion stage < 4 | 60 (26.43) | ||||