Table 2 Comparison of clinical outcomes of Day 5, 6, and 7 blastocyst transfers
From: Is day 7 culture necessary for in vitro fertilization of cryopreserved/warmed human oocytes?
Transfer categories | No. of ET | Positive β-hCG (%) | Clinical pregnancy (%) | Ongoing pregnancy (%) | No. of embryos transferred | Implanted/transferred embryos (%) |
|---|---|---|---|---|---|---|
Day 5 blast | 39 | 26 (66.7%) | 24(61.5%) | 22 (56.4%) | 1.10 ± 0.31 | 24/43 (55.8%) |
Day 6 blast | 9 | 4 (44.4%) | 3 (33.3%) | 3 (33.3%) | 1.0 ± 0.0 | 3/9 (33.3%) |
Day 7 blast | 3 | 3 (100%) | 3 (100%) | 2 (66.7%) | 1.33 ± 0.58 | 4/4 (100%) |
P valuea | NA | 0.4 | 0.23 | 0.41 | 0.60 | 0.18 |