Table 2.
Cycle outcomes resulting from transfer of good or poor quality embryos
| Transfer of good quality embryo | Transfer of poor quality embryo | P value | OR(95 % C.I) | |
|---|---|---|---|---|
| Cycles | 10625 | 1096 | ||
| Implantation | 7164/21250 (33.71) |
200/2192 (9.12 %) |
<0.001 | 0.20(0.17–0.23) |
| Clinical pregnancy | 5340(50.26 %) | 177(16.15 %) | <0.001 | 0.19(0.16–0.23) |
| Multiple pregnancy | 1572(14.80 %) | 22(2.01 %) | <0.001 | 0.12(0.08–0.18) |
| Live birth | 4208(39.60 %) | 125(11.41 %) | <0.001 | 0.20(0.16–0.24) |
| Clinical pregnancy outcome | 5340 | 177 | —— | |
| Ongoing pregnancy | 5106(48.06 %) | 168(15.33 %) | <0.001 | 0.20(0.17–0.23) |
| Miscarriage | 709(13.28 %) | 35(19.77 %) | 0.02 | 1.61(1.10–2.35) |
| -First trimester | 485(9.08 %) | 28(15.82 %) | 0.002 | 1.88(1.24–2.85) |
| -Second or third | ||||
| trimester | 224(4.19 %) | 7(3.95 %) | 0.88 | |
| Stillbirth | 9(0.17 %) | 1(0.56 %) | 0.28 | |
| Ectopic pregnancy | 237(4.44 %) | 9(5.08 %) | 0.68 | |
| Unknown outcome | 177(3.31) | 7(3.95 %) |
Data are presented as the number (%) or mean ± SD. Continuous variables were compared using analysis of variance, and categorical variables were evaluated with chi-squared tests