Table 2.
The clinical outcomes of the patients in day 4 and day 5 group stratified by fertilization method.
| Variables | IVF | P | ICSI | P | ||
|---|---|---|---|---|---|---|
| D4 | D5 | D4 | D5 | |||
| Cycles(n) | 793 | 230 | 179 | 43 | ||
| Clinical Pregnancy rate (%) | 63.93(507/793) | 58.70(135/230) | 0.148 | 65.36 (117/179) | 65.12 (28/43) | 0.976 |
| Implantation rate (%) | 51.09(655/1282) | 50.98(182/357) | 0.970 | 51.49 (155/303) | 57.14 (39/71) | 0.567 |
| Live birth rate (%) | 53.09(421/793) | 48.70(112/230) | 0.240 | 55.31 (99/179) | 51.16 (22/43) | 0.624 |
| Ectopic pregnancy rate (%) | 0.39(2/507) | 0.74(1/135) | 0.508 | 0.85 (1/117) | 0(0/28) | 1.000 |
| Multiple pregnancy rate (%) | 29.59(150/507) | 34.81(47/135) | 0.242 | 32.48 (38/117) | 39.29 (11/28) | 0.494 |
| Monozygotic twins rate (%) | 1.58(8/507) | 1.48(2/135) | 1.000 | 0.85 (1/117) | 3.57 (1/28) | 0.350 |
| Miscarriage rate (%) | 15.58(79/507) | 16.30(22/135) | 0.839 | 11.97 (14/117) | 21.43 (6/28) | 0.318 |
| Premature birth rate (%) | 16.17(82/507) | 16.30(22/135) | 0.973 | 14.53 (17/117) | 7.14 (2/28) | 0.466 |
| Stillbirth rate (%) | 0(0/507) | 0(0/135) | / | 0.85 (1/117) | 0 (0/28) | 1.000 |
| Cesarean section rate (%) | 57.99(294/507) | 65.93(89/135) | 0.095 | 58.97 (69/117) | 67.86 (19/28) | 0.387 |
| Gestational week of delivery [weeks, M (Q1, Q3)] | 38(37,39) | 38(37,39) | 0.067 | 38 (37,39) | 38 (37,39) | 0.584 |
| Male/female ratio | 0.99(267/273) | 1.18(80/68) | 0.320 | 0.97 (61/63) | 1.31 (17/13) | 0.463 |
| Live birth weight [g, M (Q1, Q3)] | 3000(2500, 3400) | 2900(2550, 3388) | 0.649 | 3200 (2600, 3500) | 3000 (2663, 3188) | 0.330 |
| Cumulative live birth rate (%) | 73.27 (581/793) | 71.30 (164/230) | 0.556 | 68.72 (123/179) | 74.42 (32/43) | 0.464 |