Table 3.
Transfer with top blastocysts | Transfer with non-top blastocysts | |||||
---|---|---|---|---|---|---|
Characteristics | hCG (n = 48) | culture medium (n = 49) | P-Value | hCG (n = 41) | culture medium (n = 44) | P-Value |
Female age (years) mean ± s.d. (range) | 35.3 ± 4.2 (22–42) | 34.9 ± 5.0 (25–42) | 0.641 | 37.0 ± 3.9 (30–43) | 36.1 ± 5.0 (25–43) | 0.380 |
Endometrium height (mm) mean ± s.d. | 11.0 ± 2.6 | 10.8 ± 2.4 | 0.817 | 11.6 ± 2.2 | 10.8 ± 1.9 | 0.110 |
No. Embryos transferred Embryos / ET mean ± s.d. | 75 1.6 ± 0.5 | 76 1.6 ± 0.5 | 0.911 | 69 1.7 ± 0.5 | 77 1.8 ± 0.5 | 0.522 |
Proportion of difficult ETs | 10.4 % | 8.2 % | 0.702 | 12.2 % | 9.1 % | 0.642 |
No. Pregnancies (PR) | 29 (60.4 %) | 32 (65.3 %) | 0.618 | 13 (31.7 %) | 13 (29.5 %) | 0.829 |
No. Clinical pregnancies (cPR) | 25 (52.1 %) | 28 (57.1 %) | 0.617 | 8 (19.5 %) | 9 (20.5 %) | 0.914 |
No. Implanted embryos (IR) | 30 (40.0 %) | 32 (42.1 %) | 0.793 | 11 (15.9 %) | 12 (15.6 %) | 0.953 |
No. Births (LBR) | 24 (50.0 %) | 26 (53.1 %) | 0.763 | 7 (17.1 %) | 8 (18.2 %) | 0.893 |
No. Babies born | 27 | 30 | 9 | 9 | ||
No. Miscarriages (MR) | 1 (2.1 %) | 2 (4.1 %) | 0.570 | 1 (2.4 %) | 1 (2.3 %) | 0.960 |
Ranges or percentages respectively are given in brackets, s.d.: standard deviation
IVF characteristics and clinical outcome of cohort A. Miscarriage rate was defined as pregnancy loss after the detection of foetal heartbeat