Table 1 Clinical characteristics of FET cycles resulting in live birth and those not resulting in live birth
FET resulting in live birth N = 371 | FET NOT resulting in live birth N = 824 | p-value | |
|---|---|---|---|
Age (mean ± SD) | 33.20 ± 3.97 | 34.46 ± 4.14 | < 0.001 |
Unexplained infertility (%, N) | 17,52 (65) | 15,29 (126) | NS |
Tubal factor infertility (%, N) | 22,37 (83) | 26,46 (218) | NS |
Male factor infertility (%, N) | 42.31 (157) | 42,84 (353) | NS |
No. of previous IVF cycles (X ± SD) | 1.68 ± 1.35 | 1.87 ± 1.43 | 0.03 |
Freeze all in previous cycle (%, N) | 12.93 (48) | 10.44 (86) | NS |
Prior birth after fresh ET (%, N) | 18.06 (67) | 16.99 (140) | NS |
No. of blastocysts transferred (X ± SD) | 1.26 ± 0.44 | 1.23 ± 0.42 | NS |
ET of optimal blastocysts (%, N) | 38.27 (142) | 20.14 (166) | < 0.001 |
ET of blastocysts frozen on day 5 (%, N) | 71.70 (266) | 64.56 (532) | 0.015 |
Endometrial thickness (mm, X ± SD) | 10.38 ± 2.34 | 9.95 ± 2.17 | 0.004 |
Secretory endometrium pattern (%) | 58.68 | 60.38 | NS |