Table 3.
Characteristics of embryo transfer and clinical outcomes.
| H | L | p | |
|---|---|---|---|
| ET cycles (n) | 150 | 142 | |
| Couples (n) | 101 | 81 | |
| Couples having single or multiple ET cycles (%) | |||
| Single | 65/101 (64.36) | 40/81 (49.38) | 0.0422 b |
| Multiple (= > 2 cycles) | 36/101 (35.64) | 41/81 (50.62) | 0.0422 b |
| Embryos/transfer | 2 [2, 2] | 2 [1, 2]a | 0.0019a |
| Top embryos/transfer | 2 [1, 2] | 1 [1, 2]a | < 0.0001a |
| Only grade 3 embryo transfer cycles (n) | 5 | 11 | |
| Clinical pregnancy rate (%) | 54/150 (36.00) | 35/142 (24.65) | 0.0352b |
| Implantation rate (%) | 62/276 (22.46) | 38/234 (16.24) | 0.0777b |
| Spontaneous miscarriage rate (%) | 20/54 (37.04) | 11/35 (31.43) | 0.5875b |
| Live birth rate (%) | 34/150 (22.67) | 24/142 (19.9) | 0.2171b |
| IPEs/ top embryos (%) | 62/248 (25.0) | 38/191 (18.8) | 0.2061b |
| LPEs/ top embryos (%) | 38/248 (15.32) | 25/191 (13.09) | 0.5081b |
| Duration of pregnancy (days) | 269.0 [261.3, 275] | 269[261.8, 272.8] | > 0.9999a |
| Birthweight (g) | 3220 [2578, 3600] | 3400[3150, 3650] | 0.2139a |
Data are presented as the median [the first quartile, the third quartile] or count (percentage).
ET embryo transfer.
IPEs Embryos that were successfully implanted, namely implantation potential embryos.
LPEs Embryos that successfully led to a livebirth, namely, livebirth potential embryos.
aMann–Whitney U test.
bChi-squared test.