Table 4.
Clinical outcomes of frozen-thawed embryo transfers originating from different gonadotropin initial phase groups.
| Outcome | Early luteal phase | Early-mid luteal phase | Mid-late luteal phase | P value | |
|---|---|---|---|---|---|
| FET cycle n | 81 | 61 | 42 | ||
| Embryo transferred per cycle | 1.56±0.52 | 1.60±0.52 | 1.54±0.50 | 0.794 | |
| Implantation rate per embryo transferred % (n) | D3 embryo transfer | 17.0 (19/112) |
15.9 (14/88) |
20.0 (11/55) |
0.815 |
| D5 embryo transfer | 46.7 (7/15) |
40.0 (4/10) |
22.2 (2/9) |
0.599 | |
| Clinical pregnancy rate per transfer % (n) | 25.9 (21/81) |
26.2 (16/61) |
23.8 (10/42) |
0.957 | |
| Miscarriage rate % (n) | 19.0 (4/21) |
12.5 (2/16) |
10.0 (1/10) |
0.759 | |
| Ongoing pregnancy rate per transfer n (%) | 21.0 (17/81) |
23.0 (14/61) |
21.4 (9/42) |
0.960 | |
| Live birth rate per transfer n(%) | 14.8 (12/81) |
18.0 (11/61) |
19.0 (8/42) |
0.800 | |