Table 2 Reproductive outcomes following transferring blastocyst stage embryo
Characteristics | Normal(N = 972) | Overweight(N = 480) | Obesity(N = 228) | Normal vs. Overweight | Overweight vs. Obestiy | Normal vs. Obesity |
|---|---|---|---|---|---|---|
Number of FET | 972 | 480 | 228 | Â | Â | Â |
Number of thawed embryos | 1839 | 908 | 423 | Â | Â | Â |
Number of transferred embryos | 1828 | 905 | 418 | Â | Â | Â |
Embryo quality,%(n) | Â | Â | Â | 0.329 | 0.593 | 0.443 |
 High-quality embryos | 1789 (97.26%) | 877 (96.92%) | 405 (96.81%) |  |  |  |
 Low-quality embryos | 50 (2.74%) | 28 (3.08%) | 13 (3.19%) |  |  |  |
Clinical pregnancy rate per transfer,%(n) | 59.26%(576/972) | 57.71%(277/480) | 55.26%(126/228) | 0.405 | 0.401 | 0.307 |
Implantation rate,%(n) | 41.08%(751/1828) | 40.77%(369/905) | 38.52%(161/418) | 0.476 | 0.325 | 0.282 |
Miscarriage rate,%(n) | 11.28%(65/576) | 16.61%(46/277) | 15.08%(19/126) | 0.069 | 0.432 | 0.184 |
Multiple pregnancy rate,%(n) | 30.38%(175/576) | 33.21%(92/277) | 27.78%(35/126) | 0.298 | 0.249 | 0.377 |
Ectopic pregnancy rate,%(n) | 1.56%(9/576) | 2.46%(7/284) | 1.56%(2/128) | 0.258 | 0.438 | 0.623 |
Intrauterine and ectopic pregnancy rate,%(n) | 0%(0/585) | 0.35%(1/284) | 0%(0/128) | 0.548 | 0.527 | 0.328 |
Ongoing pregnancy rate,%(n) | 54.94%(534/972) | 53.13%(255/480) | 52.19%(119/228) | 0.379 | 0.477 | 0.366 |
Live birth rate,%(n) | 50.21%(488/972) | 45.83%(220/480) | 46.49%(106/228) | 0.191 | 0.517 | 0.251 |