Table 3 Effects of embryo contamination on embryo development (%)
Embryo contamination cycle | Embryo contamination-free cycle(Regular IVF Cycle) | X2 | P | |
|---|---|---|---|---|
Cycle | 15 | 1887 | - | - |
2PN fertilization rate | 74.58(111/173) | 63.33 (13,064/20628) | 0.051 | 0.821 |
2PN cleavage rate | 99.10 (/110/111) | 99.04 (12,938/13064) | 0.005 | 0.946 |
High-quality embryo rate | 68.18 (75/110) | 74.83 (9681/12938) | 2.553 | 0.110 |
Blastocyst formation rate | 67.54 (77/114) | 62.79 (7623/12140) | 1.092 | 0.296 |
High-quality blastocyst rate | 40.35 (46/114) | 39.21 (4760/12140) | 0.062 | 0.804 |
Clinical pregnancy rate | 62.50 (5/8) | 52.19 (1182/2265) | 2.816 | 0.133 |
Implantation rate | 60.00 (6/10) | 39.52 (1457/3687) | 1.750 | 0.208 |
Spontaneous abortion rate | 20.00 (1/5) | 13.11 (155/1182) | 0.207 | 0.506 |
Neonatal asphyxia | 0(0/12) | 0.61(6/988) | 0.073 | 1.000 |
Neonatal pneumonia | 0(0/12) | 0.30(3/988) | 0.037 | 1.000 |
Intrauterine growth retardation rate | 9.09(1/12) | 9.92(98/988) | 8.762 | 0.003 |
Fetal distress | 9.09(1/12) | 7.49(74/988) | 0.012 | 0.610 |
Amniotic fluid contamination rate | 0(0/12) | 0.51(5/988) | 0.061 | 1.000 |
Prematurity rate | 9.09(1/12) | 15.690(155/988) | 0.487 | 0.704 |
Low birth weight rate | 18.18(2/12) | 8.40(83/988) | 1.042 | 0.272 |
Premature rupture of membranes rate | 18.18(2/12) | 13.16(130/988) | 0.127 | 0.665 |
Birth defect rate | 0(0/12) | 1.52(15/988) | 0.185 | 1.000 |